DK160500B - Analogifremgangsmaade til fremstilling af 3-thiomethylpyridinderivater - Google Patents
Analogifremgangsmaade til fremstilling af 3-thiomethylpyridinderivater Download PDFInfo
- Publication number
- DK160500B DK160500B DK188183A DK188183A DK160500B DK 160500 B DK160500 B DK 160500B DK 188183 A DK188183 A DK 188183A DK 188183 A DK188183 A DK 188183A DK 160500 B DK160500 B DK 160500B
- Authority
- DK
- Denmark
- Prior art keywords
- aromatic
- preparation
- general formula
- pyridyl
- methylthio
- Prior art date
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- 210000003802 sputum Anatomy 0.000 description 1
- 208000024794 sputum Diseases 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000004936 stimulating effect Effects 0.000 description 1
- 239000001384 succinic acid Substances 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 230000009885 systemic effect Effects 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 235000012222 talc Nutrition 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- PYAOPMWCFSVFOT-UHFFFAOYSA-N tisopurine Chemical compound SC1=NC=NC2=C1C=NN2 PYAOPMWCFSVFOT-UHFFFAOYSA-N 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 1
- CYRMSUTZVYGINF-UHFFFAOYSA-N trichlorofluoromethane Chemical compound FC(Cl)(Cl)Cl CYRMSUTZVYGINF-UHFFFAOYSA-N 0.000 description 1
- 229940029284 trichlorofluoromethane Drugs 0.000 description 1
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D213/62—Oxygen or sulfur atoms
- C07D213/70—Sulfur atoms
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P11/00—Drugs for disorders of the respiratory system
- A61P11/10—Expectorants
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- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/24—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with substituted hydrocarbon radicals attached to ring carbon atoms
- C07D213/28—Radicals substituted by singly-bound oxygen or sulphur atoms
- C07D213/32—Sulfur atoms
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- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D401/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom
- C07D401/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings
- C07D401/12—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings linked by a chain containing hetero atoms as chain links
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D487/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00
- C07D487/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00 in which the condensed system contains two hetero rings
- C07D487/04—Ortho-condensed systems
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Description
DK 160500 B
Opfindelsen angår en analogifremgangsmåde til fremstilling af hidtil ukendte thiomethylpyridinderivater.
De hidtil ukendte forbindelser fremstillet ved fremgangsmåden 5 ifølge opfindelsen udmærker sig overraskende ved en høj bron-chosekretolytisk og muko lytisk virkning, som kan udnyttes terapeutisk.
Som bekendt er viskositetsformindskelsen af sputum med læge-10 midler et vigtigt terapeutisk mål ved behandling af akutte og kroniske bronchialsygdomme (f.eks. infektioner af luftvejene, astmatiske vanskeligheder, obstruktive sygdomme og lignende). Til disse sygdomsbilleder kendes lægemidler af forskellig art. De adskiller sig ved deres lokale eller sy-15 stemiske virkning. Til den lokalt virksomme lægemiddelgruppe hører blandt andet N-acetylcystein. Til de systemisk virkende repræsentanter - og et i bronchialsygdommes terapi etableret bronchosekretolytikum - hører f.eks. ambroxol, dvs. trans- 4-(2-amino-3,5-dibrombenzyl)-aminocyklohexanol. Denne forbin-20 delse beskrives f.eks. i DE-PS 1.593.579.
Det er den foreliggende opfindelses opgave at stille hidtil ukendte bronchosekretolytisk og mukolytisk virkende forbindelser til rådighed, hvis orale og parenterale virkning er 25 væsentligt forbedret sammenlignet med anerkendte gode virk somme stoffer med samme virkningsretning, f.eks. ambroxol.
Denne opgave løses med den foreliggende opfindelse, som angår en analogi fremgangsmåde til fremstilling af 3-thiomethylpyri- di nderivater med den almene formel 30 * C,V!"
N
f 35 hvor R er gruppen 2-pyrimidinyl, 2-(4-methy1pyrimidi ny 1), 2- (4,6-dimethy1pyri midi ny 1), 4-tolyl, 4-chlorphenyl, 2-(l-me- thylmidazoly1), 2-(4,5-diphenyloxazolyl) eller 4-(lH-pyrazolo-(3,4-d)-pyrimidinyl, og Ri er et hydrogenatom eller en i 2-
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2 eller 6-stilling værende methyl- eller chlorrest, samt deres terapeutisk anvendelige syreadditionssalte, hvilken fremgangsmåde er ejendommelig ved, at man omsætter et thiolat med den almene formel
5 R-SMe III
hvor R har den ovennævnte betydning, og Me er et alkalimetalatom, med et picolylchlorid-hydrohalogenid med den almene formel 10 ^Nr— CH,-Cl*HHal -4ΡΓ
N
hvori Ri er som ovenfor defineret, og Hal er et halogenatom, i 15 vandig vandig alkoholisk alkalihydroxidopløsning, idet alkali-hydroxidet foreligger i overskud over den støkiometriske mængde, og eventuelt omdanner den således fremkomne frie base til et terapeutisk anvende!igt syreadditionssalt.
20 Forbindelserne med den almene formel I danner let syreadditionssalte, f.eks. mono-, di- og triadditionssal te, f.eks. hy-droehlorider, hydrobromider, sulfater, acetater, maleater, fu-marater, oxalater, succinater og embonater.
25 Omsætningen finder sted i vandig alkoholisk alka1 ihydroxido-pløsning, idet alkalihydroxidet foreligger i overskud over den støkiometriske mængde, fortrinsvis i mindst den dobbeltækvi-molære mængde. Som vandig alkoholisk opløsning kan der fortrinsvis være tale om en vandig ethanolisk opløsning. Som al-30 kalihydroxid foretrækkes natriumhydroxid. Ved omsætningen går man hensigtsmæssigt frem på den måde, at man opløser thiolater af den almene formel III ved 0 til 5°C i vandige alkoholiske alkalihydroxidopløsninger og derefter bringer i omsætning med den ækvimolære mængde af picolylchlorid-hydrohalogenidforbin-35 delsen opløst i vandig alkoholisk, fortrinsvis vandig ethanolisk, opløsning i 2 til 6 timer, fortrinsvis 4 timer ved stuetemperatur.
3
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På grund af det anvendte støkiometriske overskud af alkalihy-droxidet fås den frie base, som derpå på sædvanlig måde ved omsætning med en farmaceutisk anvendelig syre kan omdannes til et terapeutisk anvendeligt salt.
5
Forbindelserne fremstillet ifølge opfindelsen udmærker sig ved en overraskende forbedret bronchosekretolytisk og mukolytisk virkning, således at de kan doseres til terapien i væsentligt mindre mængder end kendte virksomme stoffer.
10
Farmaceutiske præparater indeholdende de ifølge opfindelsen fremstillede forbindelser kan anvendes til alle arter af bron-chialsygdomme, f.eks. akutte og kroniske luftvejssygdomme, til efterbehandling af ki rurgiske indgreb i luftvejene samt til 15 alle processer, hvor en f1ydengøre1 se af bronchialslimen er ønskel i g.
De ifølge opfindelsen fremstillede forbindelser indgives fortrinsvis oralt. Sæcvanligvis er den orale daglige dosis 0,01 20 til 0,2 g, fortrinsvis 0,02 til 0,1 g, som kan indgives i en eller flere daglige doser. I det enkelte tilfælde kan det eventuelt være nødvendigt at afvige fra de nævnte mængder, nemlig i afhængighed af individuelle forhold overfor det virksomme stof eller arten af dets præparat og tidspunktet 25 eller intervallet, hvor indgiften sker. Således findes der f.eks. tilfælde, hvor man kan klare sig med mindre end den ovennævnte mindstemængde, medens den nævnte øvre grænse i andre tilfælde må overskrides. Hvis det drejer sig om indgift af større mængder, kan det anbefales at fordele disse 30 i flere enkeltdoser gennem dagen.
Til oral indgift kan det virksomme stof f.eks. formuleres som kapsler, der fremstilles ved sædvanlige foranstaltninger med farmaceutisk anvendelige hjælpestoffer, f.eks. binders midler (såsom forgelatineret majsstivelse, polyvinylpyrroli-don eller hydroxypropylmethylcellulose), fyldstoffer (såsom lactose, mikrokrystallinsk cellulose eller calciumphosphat), smøremidler, såsom magniumstearat, talk eller kiselsyre), 4
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sprængmidler, f.eks. kartoffelstivelse eller natriumstivel-se-glycolat) eller befugtningsmidler (f.eks. natriumlauryl= sulfat. Kapslerne kan overtrækkes på i og for sig kendte måder. Flydende præparater til oral indgift eller til direk-5 te inddrypning kan f.eks. have form af opløsninger, sirupper eller suspensioner, eller de kan være tørre produkter til rekonstitution med vand eller en anden egnet bærer før brugen. Sådanne flydende præparater kan fremstilles ved sædvanlige foranstaltninger med farmaceutiske anvendelige additi-10 ver, f.eks. suspenderingsmidler (såsom sorbitsirup. methyl= cellulose eller hydrerede spiselige fedtstoffer), emulgerings midler (f.eks. lecithin eller akaciegummie, ikke-vandige bærere (f.eks. ma.ndelo.lie, olieagtige estere eller konserveringsmidler, f.eks.methyl- eller propyl-p-hydroxybenzoat 15 eller sorbinsyre).
Til buccal indgift kan præparaterne være i form af tabletter eller sugepastiller, der formuleres på sædvanlig måde.
20 Forbindelser fremstillet ifølge opfindelsen kan formuleres til parenteral indgift ved injektion eller infusion. Præparater til injektion kan foreligge i enhedsdosisform, f.eks. i ampuller eller i beholdere med flere doser sammen med et tilsat konserveringsstof. Præparaterne kan også have sådanne former 25 som suspensioner, opløsninger eller emulsioner i olieagtige eller vandige bærere, og de kan indeholde formuleringsmidler, såsom suspenderings—, stabiliserings— og/eller dispergerings— midler·. Alternativt kan det virksomme stof også foreligge i pulverform til rekonstitution med en egnet bærer, f.eks.
30 sterilt pyrogenfrit vand før brugen.
Til indgift ved inhalering afgives forbindelsen fremstillet ifølge opfindelsen hensigtsmæssigt i form af en aerosol fra en under tryk stående pakning eller forstøvere under anvendelse 35 af et egnet drivmiddel, f.eks. dichlordifluormethan, trichlor-fluormethan, dichlortetrafluorethan, carbondioxid eller en anden egnet gas. Hvis det drejer sig om en under tryk stående aerosol, kan enhedsdosen bestemmes på den måde, at der haves en ventil til afgivelse af en doseret mængde.
, DK 160500 B
Farmakologiske undersøgelser har vist, at de ifølge opfindelsen fremstillede thiomethylpyridinderivater sammenlignet med det kendte produkt ambroxol har overlegne bronchosekretolytis-ke og mykolyti5ke egenskaber. I enkeltheder blev udført følgende undersøgelser: 5 1. Farmakodynamik 1.1. Sekretstimulerende virkning
Bronchosekretolytisk . virksomme forbindelser fremmer den tracheale udskillelse af phenolrødt (Chronic Bronchi= tis Research Group, Chinese Medical Journal 3 : 259, 10 1977). Stigningen i den tracheale phenolrød-udskillelse er et mål for den bronchosekretolytiske virkning. Denne virkning af de undersøgte stoffer blev undersøgt efter oral indgift til vågne mus. De i tabel I anførte ED^q-værdier blev beregnet ved hjælp af regressionskurven.
Som det vil ses af tabellen, var 2-(pyridyl-3-methylthio)-pyrimidin-hydrochlorid og 2-(pyridyl-3-methylthio)-l-methyl-imidazoldihydrochlorid de stærkest virksomme. Derés virkning til fremme af phenolrødt-udskillelsen var ca. 160 2Q gange stærkere end virkningen af det kendte bronchosekre- tolytikum ambroxol.
Tab_el_.l
Forbindelse ED50 (mg/kg) 25
Eks. 1 1,5 "2 10 "3 12 " 4 10 30 "5 6 " 6 100 7 20 "8 5 "9 1,5 35 " 10 5 __________"____11______________________10_____
Ambroxol (sammen- 250 _____J.±gjiin9iJ.__________________________
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6 1.2. Muko-sekretolytisk virkning på hund På narkotiserede hunde af blandet race blev bronchial-slim udtaget umiddelbart før og 1 time efter intrave^ 5 nøs indgift af de undersøgte stoffer ved hjælp af et bronchoskop og optaget i phosphatstødpude. Efter dialysering og frysetørring blev slimprøverne optaget i 0,1M Tris-stødpude (pH 7) (slutkoncentration 1% w/v). Målingen af viskositet skete i et rotationsviskosimeter (Fir'· 10 ma Contraves, Stuttgart).
Som det vil ses af tabel 2, bevirkede det kendte broncho-sekretolytikum ambroxol et tydeligt fald i viskositeten af den bronchiale slim. Den på vægtbasis beregnede iden-15 tiske mængde af 2-(pyridyl-3-methylthio)-pyrimidin-hydro= chlorid sænkede viskositeten af den bronchiale slim endnu tydligere.
Tabel II
20 ---------------
Dosis og Viskositet applikations- mPa x s
Forbindelse form __ 25 Før indgift 1 time efter indgift
Kontrol 4,2 4,8 (0,9% NaCl) i.v. »(3,6-4,8) (4,4-5,2 30
Eksempel 1 10 mg/kg i.v. ; 3,9 1,2 ,(3,2-4,5) (1,0-1,4)
Ambroxol s 10 mg/kg i.v. i 3,8 i 2,3 }(3,6-4,0) I (1,4-3,2) ' *· f , — ---——- 1,1 »' " » '* 35 7
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2· Toksi skol og i ske resultater
Forbindelserne fremstillet ifølge opfindelsen udviser ved akutte forsøg en lav oral toksicitet. Således fandtes en 5 LD5Q-værdi for 2-(pyri dy1-3-methy1thi o)-pyri mi din-hydro- chlorid på 1156 mg/kg p.o. hos mus. Under i dent i ske betingelser viste ambroxol sig som lidt mindre toksisk (LD50 : 2720 mg/kg p.o. ifølge PUschmann m.fl. Arnz.
Forsch. 28 : 889, 1978).
10
Opfindelsen belyses af eksemplerne.
15 20 25 30 35
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8
Eksempel 1
Fremstilling af 2- (pyridyl-3-methylthio) -pyrimidin-hydrochlorid s-ch2 -* HC1
Til en opløsning af 11,2 g (0/1 mol) 2-mercaptopyrimidin i 5 250 ml ethanol dryppes ved 0°C 8,4 g (0,21 mol) natriumhydroxid opløst i 12Q ml vand. Derefter tilsættes langsomt 16,4 g (0,1 mol) 3-picolylchlorid-hydrochlorid opløst i 100 ml vand, og der omrøres i 4 timer ved stuetemperatur. Reaktionsopløsningen inddampes, optages i 500 ml ether, den organiske fase 10 vaskes tre gange med hver 100 ml vand, der tørres over natri= umsulfat, frafiltreres, og filtratet inddampes i vakuum. Det fremkomne faste stof, som udgør basen, omkrystalliseres af hexan.
Farveløse krystaller med smp. 53-54°C, 15 Rf = 0,5 (CH2Cl2/MeOH 9:1), udbytte 9,14 g (45%).
C^qH^N^S (203) Beregnet : C, 59,09? H, 4,46; N, 20,67; S, 15,77;
Fundet : C, 59,20; H, 4,47; N, 20,65; S, 15,73.
^H-NMR-spektrum (CDC13) : 6 = 4,40 (s) (-SCH2-)2 H, 20 7,0 (t) (aromatisk-H) 1 H, 7,20 (m) (aromatisk-H) 1 H, 7,80 (d) (aromatisk-H) 1 H, 8,53 (m) (aromatisk-H) 3 H, 8,73 (s) (aromatisk-H) 1 H ppm.
25 Fremstillingen af hydrochloridet sker ved til en etherisk opløsning af 2-(pyridyl-3-methylthio)-pyrimidin at sætte en ækvimolær 10% ethanolisk HCl-opløsning. Derved fremkommer 9
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hydrochloridet analyserent.
Farveløse krystaller med smp. 134-135°C,
Rf = 0,85 (CH2Cl2/MeOH, 8/2, NH^-dampe), udbytte (kvantitativt.
5 C10H10C1N3S ^240^ Bere9net : C/ 50,10; H, 4,20; N, 17,53; S, 13,37;
Fundet : C, 50,18; H, 4,10; N, 17,45; S, 13,36.
^H-NMR-spektrum 10 (D20) ; δ = 5,03 (s) (-S-CH2) 2 H, 7,70 (t) (aromatisk-H) 1 H, 8,43 (m) (aromatisk-H) 1 H, 9,03 (d) (aromatisk-H) 2 H, 9,13 (t) (aromatisk-H) 2 H, 15 9,37 (s) (aromatisk-H) 1 H ppm.
Eksempel la
Fremstilling af 2-(pyridyl-3-methylthio)-pyrlmidin-succinat
Fremstillingen af succinatet sker ved til en ethanolisk opløsning af 2-(pyridyl-3-methylthio)-pyrimidin at sætte en 20 ækvimolær ethanolisk ravsyreopløsning. Efter inddampning af reaktionsopløsningen fremkommer succinatet analyserent.
Farveløse krystaller med smp. 98°C Rf = 0,78 (CH2Cl2/MeOH 8:2 NH3-dampe), udbytte (kvantitativt).
25 C14H15N3°4S (321) Bere9net : c· 52,33; H, 4,71; N, 13,08; S, 9,98
Fundet : C, 52,31; H, 4,78; N, 13,06; S, 9,92 10 DK 1605008 ^H-NMR-spektrum (dg-DMSO) : δ = 2,20 (s) (~CH2-CH2-) 4 H, 4,43 (s) (S-CH2) 2 H, 7,27 (t) (aromatisk-H) 1 H, 5 7,37 (m) (aromatisk-H) 1 H, 7,87 (d) (aromatisk-H) 1 H, 8,47 (d) (aromatisk-H) 1 H, 8,67 (m) (aromatisk-H) 3 H ppm.
10 15 20 25 30 35 11
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Eksempel 2,
Fremstilling af 2-(pyridyl-3-methylthio)-4-methylpyrimidin-hydrochlorid CH- d\ _ . HCl 5 Fremstillingen sker analogt med eksempel1 af 2-mercapto- 4-methylpyrimidin og 3-picolylchlorid-hydrochlorid.
Farveløse krystaller med smp. 154°C, = 0,8 (CH^C^/MeOH, 8/2, NH^-dampe) , udbytte 10,3 g (43%).
C11H12C1N3S (254) Beregnet : C, 52,07; H, 4,77; N,, 16,56; 10 S, 12,63
Fundet : C, 52,18; H, 4,81; NT 16,58; S, 12,55.
^H-NMR-^spek trum (D20) : δ = 2,80 (2) (CH-j) 3 H, 15 4,93 (s) (S-CH2) 2 H, 7,43 (d) (aromatisk-H) 1 H, 8,47 (t) (aromatisk-H) IH, 8,73 (d) (aromatisk-H) 1 H, 9,17 (m) (aromatisk-H) 2 H, 2Q 9,47 (s) (aromatisk-H) 1 H ppm.
Eksempel 3.
Fremstilling af 2-(pyridyl^3-methylthioT-4,6-dimethylpyrimidin-hydrochlorid CB3x
// N i/—V
\ )—s-ca2—( V HCl
N \—W
ch3
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Fremstillingen sker analogt med eksempel 1 af 4,6-dimethyl- 2-mercaptopyrimidin og 3-picolylchlorid-hydrochlorid.
Farveløse krystaller med smp. 155-156°C,
Rf = 0,8 (CH2Cl2/MeOH, 8/2, NH3-dampe), udbytte 10,2 g (38%).
5 C12H14C1N3S {268) Bere9net : C, 53,83; H, 5,27; N, 15,69; S 11,97
Fundet : C, 52,70; H, 5,37; N, 15,70; S, 11,93.
j q ^H-NMR-spektrum (D20) : S = 2,73 (s) (2 x CH3) 6 H, 4,90 (s) (S^CH2) 2 H,
7,20 (s) (aromatisk-H), 1 H
8,43 (t) (aromatisk-H), 1 H, 15 8,83 (d) (aromatisk-H), 2 H, 9,13 (s) (aromatisk-H), 1 H ppm.
Eksempel 4
Fremstilling af 4-tolyl -3-me thy 1 thiopyridin-hydrochlorid 20 CH3 —StCH2 -* HC1 25
Fremstillingen sker analogt med eksempel 1 af p-*methylthio= phenol og 3-picolylchlorid-hydrochlorid.
Farveløse krystaller med smp. 148-149°C, 30
Rf =0,71 (MeOH / NH3-dampe), udbytte 11,8 g (47%).
C13H14C1NS (252) Bere9net: c» 52,02; H, 5,61; N, 5,56
Fundet : C, 62,08; H, 5,55; N, 5,61.
^H-NMR-spektrum (D20) : δ = 2,57 (s) (-CH3) 3 H, 4,67 (s) (S-CH2) 2 H, 7,47 (s) (aromatisk-H) 4 H, 8,17-9,24 (m) (aromatisk-H) 4 H ppm.
13 DK 160500 B
Eksempel
Fremstilling af 4-chlorphenyl-3-iaethylthiopyridin-hydrochlorid
Cl —S-CH2—^ ^ · HC1
Fremstillingen sker analogt med eksempel 1 af 4-chlorthio= phenol og 3-picolylchlorid-hydrochlorid.
Farveløse krystaller med smp. 152-153°C,
Rf = 0/58 (MeOH / NH3-dampe)/ udbytte 18,5 g (68%).
15 C12H11C12NS (272) Bere9net: C, 52,95; H, 4,07; N, 5,15
Fundet : C, 52,95; H, 4,10; N, 5,32.
-NMR-spektrum (D20) : δ = 4,73 (s) (S-CH2) 2 H, 20 7,47 (s) (aromatisk-H) 4 H, 8,20-9,30 (m) (aromatisk-H) 4 H ppm.
Eksempel 6, 2g Fremstilling af 2-(pyridyl-6-methyl-3-methylthio)-pyrimidin- succinat s"ch2 —(0Vch3 * hooc-ch2ch2-cooh
Fremstillingen sker analogt med eksempel 1 af 2-mercapto= pyrimidin og 6-methyl-3-picolylchlorid-hydrochlorid.
35 π
Faryeløse krystaller med smp. 110-111 C,
Rf = 0,63 (CH2C12 /MeOH, 95/5, NH3-dampe), udbytte 12,4 g (37%).
14
DK 160SU0S
C15H17N3°4S (335i Bere9net: cr 53,72; H, 5,11; N, 12,53
Fundet : C, 53,63; H, 5,19; N, 12,48.
'"HTNMR'--spektruio (dg-DMSO) : δ = 2,43 (si (-CH2-CH2-) (-CH3) 7 H, 5 4,40 (s) (StCH21 2 H, 7,10-7,33 (ml (aromatisk-H) 2 H, 7,77 (d). (aromatisk-H) 1 H, 8,50 (s) (aromatisk-H) 1 H, 8,67 (d) (aromatisk-H) 2 H ppm.
10
Eksempel 7
Fremstilling af 2t (pyridyl-2-chlor-3-methylthio) pyrimidin 15 cm3 2° Cl
Fremstillingen sker analogt med eksempel 1 af 2-mercaptopyri-midin og 2-chlor-3-picolylchlorid-hydrochlorid.
25 0
Farveløse krystaller med smp. 96-97 C,
Rf = 0,69 (CH2C12 / MeOH, 9/1), udbytte 5,1 g (64%).
Cl0HgClN3S (238).
30 η H-NMR-spektrum (CDClg) : 6 = 4,50 (s) (S-CH2) 2 H, 6,97 (t) (aromatisk-H) 1 H, 7,13 (dd) (aromatisk-H) 1 H, 7,90 (d) (aromatisk-H) 1 H, 8,23 (d) (aromatisk-H) 1 H, 8,50 (d) (aromatisk-H) 2 H ppm.
35
Eksempel 8
is DK 160500 B
Fremstilling af 2-(pyridyl-3-methylthio)-4,5-diphenyloxazol-hydrochlorid
(oX
—N\ /—v ! “
Fremstillingen sker analogt med eksempel 1 af 2-mercapto- 4,5-diphenyloxazol og 3-picolylchlorid-hydrochlorid.
15
Farveløse krystaller med smp. 156-157°Cf = 0,62 (CH2CI2 / MeOH, 95/5, NH^-dampe), udbytte 17,9 g (47%).
C21H17C1N20S i381) Bere9net: C, 66,22; H, 4,50; N, 7,35 20 Fundet : C, 66,23; H, 4,50; N, 7,47.
^H-NMR^spektrum (d^MeOH) :6 = 4,73 (s) (S*CH2) 2 H, 7,20^7,67 (m) (aromatisk-H) 10 H, 25 8,13 (ti (aromatisk-Ή) 1 H, 8,73^9,0 (ml (ar omat i sk -H) 2 Ή, 9,10 (s) (aromatisk-H) 1 H ppm.
Eksempel 9 30
Fremstilling af 2-(pyridyl-3ymethylthio)-1-methylimidazol-dihydrochlo rid 35 X S-CH2—(o) · 2 HC1 CH3
Fremstillingen sker analogt med eksempel 1 af 2-mercapto-l-methylimidazol og 3-rpicolylchlorid-hydrochlorid.
16
DK 160500 B
Farveløse krystaller med smp. 187-189°C,
Rf = O,43 (CH2C12 / MeOH, 95/5, NH3-dampe), udbytte 12,0 g (43%).
C10H15C12N3S <280) Beregnet: C, 42,86? H, 5,40? N, 15,00
Fundet : C, 43,08? H, 4,77? N, 15,03.
5 ^H-NMR-spektrum (D20 : δ = 4,43 (s) (N-CH3) 3 H, 5,13 (s) (S**CH2) 2 H, 8,00-9,53 (m) (aromatisk-H) 6 H ppm.
Eksempel 10 10 Fremstilling af 2- (pyridyl-3-methylth.io-6-chlor)-pyrimidin }~ ^2-(0)-01
Fremstillingen sker analogt med eksempel 1 af 2rmercapto= pyrimidin og 6-chlor-3-picolylchlorid-hydrochlorid.
Farveløse krystaller med smp. 89-90°C, 15 Rf = 0,68 (CH2C12 / HeOH 9/1)., udbytte 10,0 g (42%).
C10H8C1N3S (238) .
^H-NMR-spektrum (CDC13) ϊ δ = 4,33 (s) (S-C52l 2 H, 7,00 (ti (aromatisk-H). 1 H, 20 7,20 (d) (aromatisk-H) ]__ 7,77 (dd). (aromatisk-H). 1 H, 8,50 (m) (aromatisk-H) 3 H ppm.
17
DK 160500 B
Eksempel 11
Fremstilling af 4-(pyridyl-3-methylthio)-1 H-pyrazolo-(3,4-d)-pyrimidin p-@ .A_,
k JO
N N
H
5 Fremstillingen sker analogt med eksempel 1 af 4-mercapto-l-H-pyrazolo(3,4-d)-pyrimidin og 3-picolylchlorid-hydrochlorid.
Farveløse krystaller med smp. 148-149°C,
Rf = 0,54 (CH2C12 / MeOH 9/1), udbytte 16,0 g (66%).
C11H9N5S (243) Beregnet: C, 54,31; H, 3,73; N, 28,79 10 Fundet : C, 54,27; H, 3,77; N, 28,75.
-H-NMR-s pek tr um (dg-DMSO) : 6 = 4,70 (s) (S-CH2) 2 H, 7,33 (dd) (aromatisk-H) 1 H, 8,27 (s) (aromatisk-H) 1 H„ 15 8,50 (d) (aromatisk-H) 1 H, 8,73 (s) (aromatisk-H) 1 H, 8,83 (s) (aromatisk-H) 1 H, 14,13 (s). (N-H) 1 H (ombyttelig med D20) ppm.
20 Eksempel 12
Fremstilling af bløde gelatinekapsler indeholdende en virksom forbindelse fremstillet ifølge opfindelsen (f.eks. 2--(pyridyl-r3-methylthio)-pyrimidin-hydrochlorid) .
18 ,
DK 160500 B
Sammensætning: 2- (pyridyl-3-methylthio)pyrimidin hydrochlorid 100,0 mg roeolie 281,0 mg 5 bivoks 2,0 mg partielt hydreret planteolie 8,0 mg sojalecithin 8,0 mg 3- ethoxy-4-hydroxybenzaldehyd 1.,.0. mg
Samlet vægt af fyldt kapsel 400,0 mg 10 Stofferne blandes, homogeniseres og forarbejdes på sædvanlig måde til bløde gelatinekapsler.
Eksempel 13
Fremstilling af en doseringsaerosol indeholdende en virksom forbindelse fremstillet ifølge opfindelsen 15 (f.eks. 2-(pyridyl-3-methylthio)pyrimidin-hydrochlorid)
Sammensætning» 2- (pyridyl-3rinethylthio) pyrimidin hydrochlorid 10,0 mg sorbitantrioleat 0,5 mg 2Q difluormethan 35,5 mg dichlortetrafluorethan . 2.5,0 mg
Samlet dosis pr. stempelslag 71,0 mg
Stofferne opløses koldt, og 10 g opløsning anbringes i en egnet trykgaspakning.
Claims (2)
- 5 Sammensætning: 2-(pyridyl-3-methylthio)pyrimidin- hydrochlorid 100,0 mg polyethylenglykol 300 630,0 mg 1,2-propandiol 735,0 mg 10 a^-tocopherol 1,0 mg dinatriumhydrqgenphosphat 4., 0 mg natriumdihydrogenphosphat 20,0 mg vand til injektionsformål 610,0 mg Samlet vægt 2100,0 mg
- 15 Stofferne opløses, og opløsningen forarbejdes på sædvanlig måde til ampuller med 2 ml. Patentkrav. Analogi fremgangsmåde til fremstilling af 3-thiomethylpyri-derivater med den almene formel r1 4o'r c,vs-R N DK 160500 6 hvor R er gruppen 2-pyrimidinyl, 2-(4-methylpyrimidinyl), 2- (4,6-dimethylpyrimidinyl), 4-tolyl, 4-chlorphenyl, 2-(l-me- thylmidazolyl), 2-(4,5-diphenyloxazolyl) eller 4-(lH-pyrazolo-(3,4-d)-pyrimidinyl, og Ri er et hydrogenatom eller en i 2-5 eller 6-stilling værende methyl- eller chlorrest, samt deres terapeutisk anvendelige syreadditionssalte, kendetegnet ved, at man omsætter et thiolat med den almene formel R - SMe III 10 hvor R har den ovennævnte betydning, og Me er et alkalimetalatom, med et .picolylchlorid-hydrohalogenid med den almene formel 15 . —CH--C1 · HHa 1 "MOJ N hvori R1 er som ovenfor defineret,, og Hal er et halogenatom, i 20 vandig alkoholisk alkalihydroxidopløsning, idet alkali-hydroxidet foreligger i overskud over den støkiometriske mængde, og eventuelt omdanner den således fremkomne frie base til et terapeutisk anvendeligt syreadditionssalt. 25 30 35
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3216843 | 1982-05-05 | ||
| DE3216843A DE3216843C2 (de) | 1982-05-05 | 1982-05-05 | 3-Thiomethyl-pyridin-Derivate, Verfahren zu ihrer Herstellung und diese Verbindungen enthaltende Arzneimittel |
Publications (4)
| Publication Number | Publication Date |
|---|---|
| DK188183D0 DK188183D0 (da) | 1983-04-27 |
| DK188183A DK188183A (da) | 1983-11-06 |
| DK160500B true DK160500B (da) | 1991-03-18 |
| DK160500C DK160500C (da) | 1991-08-26 |
Family
ID=6162790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK188183A DK160500C (da) | 1982-05-05 | 1983-04-27 | Analogifremgangsmaade til fremstilling af 3-thiomethylpyridinderivater |
Country Status (19)
| Country | Link |
|---|---|
| US (2) | US4866066A (da) |
| EP (1) | EP0093252B1 (da) |
| JP (1) | JPS58203965A (da) |
| KR (1) | KR860001578B1 (da) |
| AT (1) | ATE32894T1 (da) |
| AU (1) | AU565518B2 (da) |
| CA (1) | CA1213279A (da) |
| DD (1) | DD208801A5 (da) |
| DE (2) | DE3216843C2 (da) |
| DK (1) | DK160500C (da) |
| ES (1) | ES520774A0 (da) |
| GR (1) | GR78961B (da) |
| HU (1) | HU189272B (da) |
| IE (1) | IE55263B1 (da) |
| IL (1) | IL68228A (da) |
| MX (1) | MX7122E (da) |
| PT (1) | PT76614B (da) |
| YU (1) | YU91483A (da) |
| ZA (1) | ZA832203B (da) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3369514D1 (en) * | 1983-05-05 | 1987-03-05 | Heumann Ludwig & Co Gmbh | Pyrimidinethioalkyl pyridine derivatives, process for their preparation and medicines containing these compounds |
| US4575554A (en) * | 1983-12-05 | 1986-03-11 | The Upjohn Company | Substituted 2-pyridylmethylthio- and sulfinyl-benzimidazoles as gastric antisecretory agents |
| GB2161160B (en) * | 1984-07-06 | 1989-05-24 | Fisons Plc | Heterocyclic sulphinyl compounds |
| DE3722810A1 (de) * | 1987-07-10 | 1989-01-19 | Hoechst Ag | Substituierte benzimidazole, verfahren zu deren herstellung, diese enthaltende pharmazeutische zubereitungen und deren verwendung |
| EP1659881B1 (en) | 2003-08-06 | 2019-04-03 | Senomyx Inc. | Novel flavors, flavor modifiers, tastants, taste enhancers, umami or sweet tastants, and/or enhancers and use thereof |
| US20060045953A1 (en) * | 2004-08-06 | 2006-03-02 | Catherine Tachdjian | Aromatic amides and ureas and their uses as sweet and/or umami flavor modifiers, tastants and taste enhancers |
| JP2008530017A (ja) * | 2005-02-04 | 2008-08-07 | セノミックス インコーポレイテッド | 食料用組成物のための風味調整剤として連結された有機部分を含む分子 |
| CN101384183B (zh) * | 2005-02-04 | 2012-07-04 | 西诺米克斯公司 | 包含连接有杂芳基部分的化合物及其作为用于食物组合物的新型鲜味调节剂、促味剂和味觉增强剂的应用 |
| TW200715993A (en) * | 2005-06-15 | 2007-05-01 | Senomyx Inc | Bis-aromatic amides and their uses as sweet flavor modifiers, tastants, and taste enhancers |
| DK3235811T3 (da) | 2006-04-21 | 2018-11-12 | Senomyx Inc | Fremgangsmåde til fremstilling af oxalamider |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1239017A (da) * | 1968-02-22 | 1971-07-14 | ||
| GB1234058A (da) * | 1968-10-21 | 1971-06-03 | ||
| GB1406882A (en) * | 1972-04-28 | 1975-09-17 | Leo Pharm Prod Ltd | Benzoic acid derivatives and benzisptjoaup'e 1.1 dopxode derovatoves |
| GB1434405A (en) * | 1973-09-06 | 1976-05-05 | Leo Pharm Prod Ltd | Phenyl-benzoic acid derivatives |
| SE418966B (sv) * | 1974-02-18 | 1981-07-06 | Haessle Ab | Analogiforfarande for framstellning av foreningar med magsyrasekretionsinhiberande verkan |
| SE416649B (sv) * | 1974-05-16 | 1981-01-26 | Haessle Ab | Forfarande for framstellning av foreningar som paverkar magsyrasekretionen |
| JPS52125170A (en) * | 1976-04-12 | 1977-10-20 | Yoshitomi Pharmaceut Ind Ltd | Pyridine derivatives |
| IT1092343B (it) * | 1978-02-02 | 1985-07-06 | Poli Ind Chimica Spa | Pirimidilsolfuri ad attivita' antisecretoria,processo per la loro preparazione e composizioni farmaceutiche che li contengono |
| SE7804231L (sv) * | 1978-04-14 | 1979-10-15 | Haessle Ab | Magsyrasekretionsmedel |
| GB2038825B (en) * | 1978-12-16 | 1983-02-09 | Wyeth John & Brother Ltd | Heterocyclic compounds substituted by heterocyclyl-alkyl-thio groups |
| GB2069493B (en) * | 1980-02-20 | 1984-02-29 | Wyeth John & Brother Ltd | Pyridine derivatives |
| CH644116A5 (de) * | 1980-08-21 | 1984-07-13 | Hoffmann La Roche | Imidazolderivate. |
| IL66340A (en) * | 1981-08-13 | 1986-08-31 | Haessle Ab | Pharmaceutical compositions comprising pyridylmethyl-thiobenzimidazole derivatives,certain such novel derivatives and their preparation |
| US4546113A (en) * | 1983-04-14 | 1985-10-08 | Pfizer Inc. | Antiprotozoal diamidines |
-
1982
- 1982-05-05 DE DE3216843A patent/DE3216843C2/de not_active Expired
-
1983
- 1983-03-16 AT AT83102598T patent/ATE32894T1/de active
- 1983-03-16 EP EP83102598A patent/EP0093252B1/de not_active Expired
- 1983-03-16 DE DE8383102598T patent/DE3375917D1/de not_active Expired
- 1983-03-18 ES ES520774A patent/ES520774A0/es active Granted
- 1983-03-21 AU AU12648/83A patent/AU565518B2/en not_active Ceased
- 1983-03-24 IL IL68228A patent/IL68228A/xx unknown
- 1983-03-24 KR KR1019830001178A patent/KR860001578B1/ko not_active Expired
- 1983-03-25 DD DD83249188A patent/DD208801A5/de not_active IP Right Cessation
- 1983-03-29 ZA ZA832203A patent/ZA832203B/xx unknown
- 1983-04-21 YU YU00914/83A patent/YU91483A/xx unknown
- 1983-04-25 CA CA000426609A patent/CA1213279A/en not_active Expired
- 1983-04-27 HU HU831446A patent/HU189272B/hu not_active IP Right Cessation
- 1983-04-27 DK DK188183A patent/DK160500C/da not_active IP Right Cessation
- 1983-04-28 PT PT76614A patent/PT76614B/pt not_active IP Right Cessation
- 1983-04-28 JP JP58076039A patent/JPS58203965A/ja active Pending
- 1983-04-28 IE IE976/83A patent/IE55263B1/en unknown
- 1983-04-28 GR GR71260A patent/GR78961B/el unknown
- 1983-04-29 MX MX8310600U patent/MX7122E/es unknown
-
1987
- 1987-02-17 US US07/015,007 patent/US4866066A/en not_active Expired - Fee Related
- 1987-03-16 US US07/026,189 patent/US4810715A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| US4866066A (en) | 1989-09-12 |
| JPS58203965A (ja) | 1983-11-28 |
| DK188183D0 (da) | 1983-04-27 |
| DK188183A (da) | 1983-11-06 |
| ATE32894T1 (de) | 1988-03-15 |
| ES8401755A1 (es) | 1984-01-01 |
| HU189272B (en) | 1986-06-30 |
| DK160500C (da) | 1991-08-26 |
| DE3375917D1 (en) | 1988-04-14 |
| PT76614B (de) | 1986-01-17 |
| EP0093252B1 (de) | 1988-03-09 |
| IL68228A0 (en) | 1983-06-15 |
| DE3216843C2 (de) | 1986-10-23 |
| US4810715A (en) | 1989-03-07 |
| EP0093252A2 (de) | 1983-11-09 |
| KR860001578B1 (ko) | 1986-10-10 |
| MX7122E (es) | 1987-06-29 |
| GR78961B (da) | 1984-10-02 |
| IE55263B1 (en) | 1990-07-18 |
| IE830976L (en) | 1983-11-05 |
| CA1213279A (en) | 1986-10-28 |
| DD208801A5 (de) | 1984-04-11 |
| PT76614A (de) | 1983-05-01 |
| ZA832203B (en) | 1983-12-28 |
| ES520774A0 (es) | 1984-01-01 |
| DE3216843A1 (de) | 1983-11-17 |
| YU91483A (en) | 1986-02-28 |
| AU1264883A (en) | 1983-11-10 |
| IL68228A (en) | 1987-12-20 |
| AU565518B2 (en) | 1987-09-17 |
| KR840004076A (ko) | 1984-10-06 |
| EP0093252A3 (en) | 1984-08-22 |
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| PBP | Patent lapsed |