CH502995A - Benzene sulphonylureas - Google Patents
Benzene sulphonylureasInfo
- Publication number
- CH502995A CH502995A CH1243768A CH1243768A CH502995A CH 502995 A CH502995 A CH 502995A CH 1243768 A CH1243768 A CH 1243768A CH 1243768 A CH1243768 A CH 1243768A CH 502995 A CH502995 A CH 502995A
- Authority
- CH
- Switzerland
- Prior art keywords
- alkyl
- carbon atoms
- radical
- cyclohexenyl
- carbons
- Prior art date
Links
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 title description 4
- -1 phenylcyclopropyl Chemical group 0.000 claims abstract description 20
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 11
- 150000003839 salts Chemical class 0.000 claims abstract description 9
- 125000003545 alkoxy group Chemical group 0.000 claims abstract description 8
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 7
- 229910052736 halogen Inorganic materials 0.000 claims abstract description 6
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 6
- 125000004183 alkoxy alkyl group Chemical group 0.000 claims abstract description 5
- 125000002947 alkylene group Chemical group 0.000 claims abstract description 5
- 125000000596 cyclohexenyl group Chemical group C1(=CCCCC1)* 0.000 claims abstract description 5
- 150000002367 halogens Chemical class 0.000 claims abstract description 5
- 125000000623 heterocyclic group Chemical group 0.000 claims abstract description 5
- 125000003342 alkenyl group Chemical group 0.000 claims abstract description 3
- 125000000753 cycloalkyl group Chemical group 0.000 claims abstract description 3
- 125000003884 phenylalkyl group Chemical group 0.000 claims abstract description 3
- 125000000843 phenylene group Chemical group C1(=C(C=CC=C1)*)* 0.000 claims abstract description 3
- 125000004432 carbon atom Chemical group C* 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 11
- 238000002360 preparation method Methods 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- 125000004434 sulfur atom Chemical group 0.000 claims description 5
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 4
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 125000004433 nitrogen atom Chemical group N* 0.000 claims description 3
- 125000001183 hydrocarbyl group Chemical group 0.000 claims description 2
- 125000005358 mercaptoalkyl group Chemical group 0.000 claims description 2
- HZVOZRGWRWCICA-UHFFFAOYSA-N methanediyl Chemical compound [CH2] HZVOZRGWRWCICA-UHFFFAOYSA-N 0.000 claims description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 1
- 239000011593 sulfur Substances 0.000 claims 1
- 125000006622 cycloheptylmethyl group Chemical group 0.000 abstract description 2
- 125000006623 cyclooctylmethyl group Chemical group 0.000 abstract description 2
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 abstract 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 abstract 1
- 239000005977 Ethylene Substances 0.000 abstract 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 abstract 1
- 229940126904 hypoglycaemic agent Drugs 0.000 abstract 1
- 231100000252 nontoxic Toxicity 0.000 abstract 1
- 230000003000 nontoxic effect Effects 0.000 abstract 1
- 125000005544 phthalimido group Chemical group 0.000 abstract 1
- 239000008280 blood Substances 0.000 description 8
- 210000004369 blood Anatomy 0.000 description 8
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 4
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 241000283973 Oryctolagus cuniculus Species 0.000 description 2
- 150000008331 benzenesulfonamides Chemical class 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 125000004210 cyclohexylmethyl group Chemical group [H]C([H])(*)C1([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C1([H])[H] 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- HQKMJHAJHXVSDF-UHFFFAOYSA-L magnesium stearate Chemical compound [Mg+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O HQKMJHAJHXVSDF-UHFFFAOYSA-L 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 150000003585 thioureas Chemical class 0.000 description 2
- 241000416162 Astragalus gummifer Species 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical class OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- GUBGYTABKSRVRQ-QKKXKWKRSA-N Lactose Natural products OC[C@H]1O[C@@H](O[C@H]2[C@H](O)[C@@H](O)C(O)O[C@@H]2CO)[C@H](O)[C@@H](O)[C@H]1O GUBGYTABKSRVRQ-QKKXKWKRSA-N 0.000 description 1
- IOVCWXUNBOPUCH-UHFFFAOYSA-N Nitrous acid Chemical compound ON=O IOVCWXUNBOPUCH-UHFFFAOYSA-N 0.000 description 1
- YGYAWVDWMABLBF-UHFFFAOYSA-N Phosgene Chemical compound ClC(Cl)=O YGYAWVDWMABLBF-UHFFFAOYSA-N 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 229920001615 Tragacanth Polymers 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910001854 alkali hydroxide Inorganic materials 0.000 description 1
- 229910001860 alkaline earth metal hydroxide Inorganic materials 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 150000008064 anhydrides Chemical class 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- GHDLZGOOOLEJKI-UHFFFAOYSA-N benzenesulfonylurea Chemical compound NC(=O)NS(=O)(=O)C1=CC=CC=C1 GHDLZGOOOLEJKI-UHFFFAOYSA-N 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 235000013877 carbamide Nutrition 0.000 description 1
- 150000001718 carbodiimides Chemical class 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 125000000582 cycloheptyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 1
- 125000000640 cyclooctyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C([H])([H])C1([H])[H] 0.000 description 1
- 125000001511 cyclopentyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 description 1
- 206010012601 diabetes mellitus Diseases 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 239000008101 lactose Substances 0.000 description 1
- 230000005923 long-lasting effect Effects 0.000 description 1
- 235000019359 magnesium stearate Nutrition 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000008164 mustard oil Substances 0.000 description 1
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- UHZYTMXLRWXGPK-UHFFFAOYSA-N phosphorus pentachloride Chemical compound ClP(Cl)(Cl)(Cl)Cl UHZYTMXLRWXGPK-UHFFFAOYSA-N 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000007127 saponification reaction Methods 0.000 description 1
- PFUVRDFDKPNGAV-UHFFFAOYSA-N sodium peroxide Chemical compound [Na+].[Na+].[O-][O-] PFUVRDFDKPNGAV-UHFFFAOYSA-N 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- XTHPWXDJESJLNJ-UHFFFAOYSA-N sulfurochloridic acid Chemical class OS(Cl)(=O)=O XTHPWXDJESJLNJ-UHFFFAOYSA-N 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 239000000196 tragacanth Substances 0.000 description 1
- 235000010487 tragacanth Nutrition 0.000 description 1
- 229940116362 tragacanth Drugs 0.000 description 1
- 230000017105 transposition Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D209/00—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom
- C07D209/02—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom condensed with one carbocyclic ring
- C07D209/44—Iso-indoles; Hydrogenated iso-indoles
- C07D209/48—Iso-indoles; Hydrogenated iso-indoles with oxygen atoms in positions 1 and 3, e.g. phthalimide
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/64—Sulfonylureas, e.g. glibenclamide, tolbutamide, chlorpropamide
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C311/00—Amides of sulfonic acids, i.e. compounds having singly-bound oxygen atoms of sulfo groups replaced by nitrogen atoms, not being part of nitro or nitroso groups
- C07C311/50—Compounds containing any of the groups, X being a hetero atom, Y being any atom
- C07C311/52—Y being a hetero atom
- C07C311/54—Y being a hetero atom either X or Y, but not both, being nitrogen atoms, e.g. N-sulfonylurea
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D333/00—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom
- C07D333/02—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings
- C07D333/04—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings not substituted on the ring sulphur atom
- C07D333/26—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings not substituted on the ring sulphur 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
- C07D333/30—Hetero atoms other than halogen
- C07D333/34—Sulfur atoms
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Pharmacology & Pharmacy (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
1. Cpds. (I) where X = phthalimido (opt. hydrogd., mono- or di-substd. by lower alkyl, alkoxy, halogen), tetrahydro- or hexahydro-endomethylene-phthalimido, tetrahydro or hexahydro-endoethylenephthalimido, napththalimido, naphthalene 1,2- or 2,3- dicarbonimido. Y = alkylene (1-4 carbons, pref. ethylene), opt. branched R' = (one or more of) H, halogen, lower alkyl or alkoxy (1-4 carbons) (N.B. phenylene nucleus pref. para). R = alkyl, alkenyl, or S-alkyl (all 2-8 carbons); alkoxyalkyl or alkyl-S-alkyl (both 4-8 carbons (is not 2 carbons for alkylene portion)); lower phenylalkyl, phenylcyclopropyl; lower cyclo-hexylalkyl, cycloheptyl-methyl or ethyl, cyclo-octylmethyl; endoalkylene-cyclohexyl, or-cyclo-hexenyl, or-cyclohexylmethyl, or-cyclohexenyl-methyl (all with 1-2 endoalkylene carbons); lower alkyl-or alkoxy-cyclohexyl; cycloalkyl (5-8 carbons); cyclohexenyl, cyclohexenyl-methyl; heterocyclic (opt. linked to N by -CH2-) (4-5 carbons, and O or S, and is not > 2 double bonds. 2. Non-toxic salts of (I). (I) are long-acting hypoglycaemic agents.
Description
Verfahren zur Herstellung von Benzolsulfonylharnstoffen
Gegenstand der Erfindung ist ein Verfahren zur Herstellung von Benzolsulfonylharnstoffen der Formel I X-Y-(phenylen)SONH-CO-NH-R I die als Substanz oder in Form ihrer Salze blutzuckersenkende Eigenschaften besitzen und die sich durch eine starke und langanhaltende Senkung des Blutzuckerspie geis auszeichnen.
In der Formel I bedeuten:
X einen gegebenenfalls ganz oder teilweise hydrierten und gegebenenfalls durch niederes Alkyl, Alkoxy oder Halogen ein oder zweifach substituierten Phthalimidrest, z.B. einen Tetrahydro- oder Hexahydre- phthalimidrest, oder einen entsprechenden Endomethylen- oder Endoäthylentetrahydrophthalimidrest oder -hexahydrophthalimidrest, einen Naphthalimidrest, ei nen Naphthalin-1,2- oder 2,3-dicarbommidrest,
Y eine gegebenenfalls verzweigte Kohlenwasserstoffkette mit 1-4 C-Atomen, vorzugsweise Äthylen,
Phenylen einen unsubstituierten oder ein oder meh°- fach durch Halogen, niederes Alkyl oder niederes A1- koxy (1-4 C-Atomen) substituierten Phenylenrest.
Er kann die restlichen Teile des Moleküls in o-, p-, oder m-Stellung zueinander tragen, wobei die p-Stellung bevorzugt ist.
R bedeutet: a) Alkyl, Alkenyl oder Mercaptoalkyl mit 2-8 C Atomen, b) Alkoxyalkyl oder Alkylmercaptoalkyl mit 4-8 C Atomen, von denen mindestens 2 dem Alkylenteil des Alkoxyalkyl bzw. Alkylmercaptoalkyl angehören.
c) niederes Phenylalkyl, Phenylcyclopropyl, d) niederes Cyclohexylzalkyl, Cycloheptyl-methyl, Cycloheptyläthyl, oder Cyclooctyl-methyl, e) Endoalkylencyolohexyl, Endoalkylencyclohexenyl, Endoalkylencyclohexylmethyl, En doalkylencyclohexe - nylmethyl mit 1-2 Endoalkylenkohlenstoffatomen, f) niederes Aikylcyclohexyl, niederes Alkoxycyclohexyl, g) Cycloalkyl mit 5-8 C-Atomen,
h) Cyclohexenyl, Cyclohexenylmethyl, i) einen heterocyclischen Ring mit 4-5 Kohlenstoffatomen und einem Sauerstoff- oder Schwefelatom sowie bis zu zwei äthylenischen Doppelbindungen oder k) einen über einen Methylenrest an das Stickstoffatom gebundenen heterocyclischen Ring mit 4-5 C-Atomen und einem Sauerstoff- oder Schwefelatom sowie bis zu zwei äthylenischen Doppelbindungen.
Das Verfahren der vorliegenden Erfindung ist dadurch gekennzeichnet, dass man in Benzolsulfonylthioharnstoffen der Formel X-Y-phenylen-SOO-NH-CS-NH-R mit den Schwefel durch Sauerstoff ersetzenden Mitteln umsetzt und gegebenenfalls die erhaltenen Verbindungen zur Salzbildung mit alkalischen Mitteln behandelt.
Der Ersatz des Schwefel atoms durch ein Sauerstoffatom in den entsprechend substituierten Benzolsulfonylthioharnstoffen kann beispielsweise mit Hilfe von Oxyden oder Salzen von Schwermetallen oder auch durch Anwendung von Oxydationsmitteln, wie Wasserstoff- peroxyd, Natriumperoxyd oder salpetriger Säure, ausge- führt werden. Die Thioharnstoffe können auch entschwefelt werden durch Behandlung mit Phosgen oder Phosphorpentachlorid. Als Zwischenstufe erhaltene Chlorameisens äureamidine bzw. -carbo-diiinide können durch geeignete Massnahmen wie Verseifen oder Anlagerung von Wasser in die Benzolsulfonylharnstoffe überführt werden.
Die Ausführungsformen des Verfahrens können hinsichtlich der Reaktionsbedingungen variiert und den jeweiligen Verhältnissen angepasst werden, beispielsweise können die Umsetzungen unter Verwendung von Lösungsmitteln durchgeführt werden.
Als Reaktionstemperaturen kommen vor allem solche von etwa 50 bis 1000 C in Frage.
Als Ausgangsstoffe für die Umsetzungen kommen vor allem R-substituierte Thioharnstoffe in Frage, die als R einen cycloaliphatischen, gegebenenfalls mit Alkyl bzw. Alkoxy substituierten oder über Alkylenransdlas Stickstoffatom gebundenen Kohlenwasserstoffrest enthalten. Als solche Reste seien beispielsweise genannt: Cyclopentyl, Cyclohexyl, Cycloheptyl, Cyclooctyl, Methylcyclohexyl, Äthylcyclohexyl, Propyl- und Isopropylcyclohexyl oder die entsprechenden Alkoxy-cyclohexyie, wobei die Alkyl bzw.
Alkoxygruppen vorzugsweise in 4-Stellung, und zwar in trans-Position vorliegen, Cyolo- hexylmethyl, Cyclohexyläthyl, Cyclohexylpropyl, Endomethylencyclohexyl, Endomethyiencyclohexenyl, Endomethylen-cyclohexylmethyl, Endomethylencyclohexenyl- methyl.
Zur Herstellung der Ausgangsstoffe kommen beispielsweise folgende BenzolsulfonamidNe in Frage, wobei nur die Wesentlichsten aufgezählt seien.
a) Phthalimidoalkylbenzolsulfonamide wie:
EMI2.1
EMI2.2
ss) entsprechende Tetra- und Hexahydrophthalimido alkylbenzolsulfonamide wie:
EMI2.3
7) Endomethylentetrahydro- und Hexahydrophthalimidoalkylbenzolsulfonamide wie:
EMI2.4
EMI3.1
d) Naphthalimidoalkylbenzolsulfonamide wie:
EMI3.2
e) Naphthalin-dicarbonamidoalkylbenzolsulfon- amide wie:
EMI3.3
ferner entsprechende Verbindungen, deren Dicarbon- imidoaikylreste im Phenylenrest in meta bzw. o-Stellung zum Sulfamidrest stehen, wobei der Phenylenrest noch in der angegebenen Weise substituiert sein kann.
Die genannten Benzolsulfonamide werden zweckmässig durch Umsetzung von Aminoalkyibenzolen mit den Anhydriden der aromatischen bzw. aliphatischen Dicarbbns äuren unter Erhitzen, Chiorsulfurieren und Überführung der Sulfochloride mit konzentriertem wässrigem Ammoniak in die Amide hergestellt.
Die blutzuckersenkende Wirkung der Verfahrensprodukte gemäss der Erfindung konnte dadurch festgestellt werden, dass man sie in Dosen von 50 mg/kg und darunter an Kaninchen verfütterte und den Blutzuckerwert nach der bekannten Methode von Hagedern-Jensen oder mit einem Autoanalyzer über eine längere Zeitdauer bestimmte. So wurde beispielsweise ermittelt, dass der
N-[4-(ss-Phthalimido-äthyl)-benlzolsulfonyl]-
N'-Cyclohexylharnstoff nach 3 Stunden bei einer Dosierung von 50 mgjkg eine Blutzuckersenkung von 32 % bewirkte, bei einer Dosierung von 10 mCg/kg betrug die Senkung 19 % und bei einer Dosierung von 2 mg/kg noch 10 %.
Der entsprechende N-[4-(ss-Phthalimido-α-methyl-äthyl)-benzol- sulfonyl]-N'-4-methylcyclohexyl-harnstoff senkte 3 Std. nach Applikation bei einer Dosis von
10 mg/ kg den Blutzuckerspiegel um 35 %, bei einer solchen von 2 mg/kg noch um 17 %.
Der N-[4-(]-Tetrahydrophthalimido-äthyl)-benzol- sulfonyl]-N'-4-methylcyclohexyl-harnstoff senkte bei einer Dosis von 10 gm/kg um 44 %, bei einer solchen von 2 mg/kg um 45 %, bei 0,4 mg/kg um 37%.
Die Werte für den entsprechenden N-[4-(ss-Hexahydrophthalimidoäthyl)- benzolsulfonyl]-N'-4'-methyl-cyclohexylhafnstoff liegen bei 31, 19 bzw. 14 %.
Dagegen ist der bekannte N-(4-Methyl-benzoisul fonyl)-N'-butylharnLstoff bei einer Dosis von weniger als 25 mg/kg am Kaninchen nicht mehr wirksam.
Die Verfahrensprodukte sollen vorzugsweise zur Herstellung von oral verabreichbaren Präparaten mit blutzuckersenkender Wirksamkeit zur Behandlung des Diabetes mellitus dienen und können als solche oder in Form ihrer Salze bzw. in Gegenwart von Stoffen, die zu einer Salzbildung führen, appliziert werden. Zur Salzbildung können beispielsweise herangezogen werden: Alkalische Mittel, wie Alkali oder Erdalkali-hydroxyde, -carbonate oder -bicarbonate. Als medizinische Präparate kommen vorzugsweise Tabletten in Betracht, die neben den Verfahrenserzeugnissen die üblichen Hilfs- und Trägerstoffe wie Talkum, Stärke, Milchzucker, Tragant oder Magnesiumstearat enthalten.
Ein Präparat, das die beschriebenen Benzolsulfonyl- harnstoffe als Wirkstoff enthält, z. B. eine Tablette oder ein Pulver mit oder ohne die genannten Zusätze, ist zweckmässig in eine geeignet dosierte Form gebracht.
Als Dosis ist dabei eine solche zu wählen, die der Wirksamkeit des verwendeten Benzolsulfonyiharnstoffes und dem gewünschten Effekt angepasst ist. Zweckmässig beträgt die Dosierung je Einheit etwa 0,5 bis 100 mg, vorzugsweise 2 bis 10 mg, jedoch können auch erheblich darüber oder darunter liegende Dosierungseinheiten verwendet werden, die gegebenenfalls vor Applikation zu teilen bzw. zu vervielfachen sind.
Beispiel N-[4-(ss-Naphthalin- 1,8 -dicarbonimidoäthyl)-benzol suifonyl] -N'-n-butylharnstoff a) 19 g 4-p-Naphthalin-1 ,8-dicarbonimidoäthyl-ben- zolsulfonamid, Schmelzpunkt 282-2g30 C, 13,8 g Ka liumoarbonat (fein gepulvert) und 400 ml Aceton werden 6 Stunden unter Rühren und Rückfluss zum Sieden erhitzt. Anschliessend tropft man 5,8 g n-Butylsenföl zu und rührt 16 Stunden bei Siedetemperatur nach. Das Reaktionsgut wird abgesaugt, mit verdünnter Salzsäure behandelt und wieder abgesaugt.
Der so erhaltene N-4-(- - Naphthalin- 1, 8-dicarbonimidoäthyl)-benzolsulf- onyl]-N'-n-butyl-thioharnstoff wird aus etwa 0,25 %- igem wässrigem Ammoniak und verdünnter Salzsäure umgefällt und aus Methanol und Dioxan umkristalli- siert. Schmelzpunkt 215-217 C.
b) 1,5 g N-[4-(ss-Naphthalin-1,8-dicarbonimido- äthyl)-benzolsulfonyl]- N'-n-butyl-thioharnstoff werden in 100 ml 0,5 n Natronlauge auf dem Dampfbad gelöst.
Anschliessend versetzt man die Lösung mit 3 ml Wasserstoffperoxyd 30 % ig und erhitzt 10 Minuten auf dem Dampfbad. Man kühlt ab und säuert die Lösung mit verdünnter Salzsäure an. Die kristalline Fällung wird abgesaugt und aus 0,25 % igem wässrigem Ammoniak und verdünnter Salzsäure umgefällt. Der N-[4-(ss-Naphthalin-1 , 8-dicarbonimidäthyl)- benzolsulfonyl]-N'-n-butylharnstoff schmilzt nach dem Umkristallisieren aus Methanol/ Dioxan bei 188-1900 C.
Process for the preparation of benzenesulfonylureas
The invention relates to a process for the preparation of benzenesulfonylureas of the formula I XY- (phenylene) SONH-CO-NH-R I which, as a substance or in the form of their salts, have blood sugar-lowering properties and which are characterized by a strong and long-lasting lowering of the blood sugar level .
In formula I:
X is an optionally completely or partially hydrogenated phthalimide radical which is optionally monosubstituted or disubstituted by lower alkyl, alkoxy or halogen, e.g. a tetrahydro or hexahydrophthalimide radical, or a corresponding endomethylene or endoethylene tetrahydrophthalimide radical or hexahydrophthalimide radical, a naphthalimide radical, a naphthalene-1,2- or 2,3-dicarbommide radical,
Y is an optionally branched hydrocarbon chain with 1-4 carbon atoms, preferably ethylene,
Phenylene is an unsubstituted phenylene radical or one or more times substituted by halogen, lower alkyl or lower alkoxy (1-4 carbon atoms).
He can carry the remaining parts of the molecule in o-, p-, or m-position to one another, the p-position being preferred.
R means: a) alkyl, alkenyl or mercaptoalkyl with 2-8 carbon atoms, b) alkoxyalkyl or alkylmercaptoalkyl with 4-8 carbon atoms, of which at least 2 belong to the alkylene part of the alkoxyalkyl or alkylmercaptoalkyl.
c) lower phenylalkyl, phenylcyclopropyl, d) lower cyclohexylzalkyl, cycloheptylmethyl, cycloheptylethyl, or cyclooctylmethyl, e) endoalkylenecyclohexyl, endoalkylenecyclohexenyl, endoalkylenecyclohexylmethyl, phenylenecyclohexyl, methylene cyclohexylene, alkoxy ) Cycloalkyl with 5-8 C atoms,
h) Cyclohexenyl, cyclohexenylmethyl, i) a heterocyclic ring with 4-5 carbon atoms and one oxygen or sulfur atom and up to two ethylenic double bonds or k) a heterocyclic ring with 4-5 carbon atoms and one bonded to the nitrogen atom via a methylene radical Oxygen or sulfur atom and up to two ethylenic double bonds.
The process of the present invention is characterized in that benzenesulfonylthioureas of the formula X-Y-phenylene-SOO-NH-CS-NH-R are reacted with the sulfur-oxygen-replacing agents and the compounds obtained are optionally treated with alkaline agents to form salts.
The sulfur atom can be replaced by an oxygen atom in the correspondingly substituted benzenesulfonylthioureas with the aid of oxides or salts of heavy metals or by using oxidizing agents such as hydrogen peroxide, sodium peroxide or nitrous acid. The thioureas can also be desulfurized by treatment with phosgene or phosphorus pentachloride. Chloroformic acid amidines or carbo-diimides obtained as intermediate can be converted into the benzenesulfonylureas by suitable measures such as saponification or addition of water.
The embodiments of the process can be varied with regard to the reaction conditions and adapted to the particular conditions, for example the reactions can be carried out using solvents.
Above all, those of about 50 to 1000 C are suitable as reaction temperatures.
R-substituted thioureas which contain, as R, a cycloaliphatic hydrocarbon radical, optionally substituted by alkyl or alkoxy or bonded via an alkylene transducer nitrogen atom, are particularly suitable as starting materials for the reactions. Examples of such radicals are: cyclopentyl, cyclohexyl, cycloheptyl, cyclooctyl, methylcyclohexyl, ethylcyclohexyl, propyl and isopropylcyclohexyl or the corresponding alkoxycyclohexyls, where the alkyl or
Alkoxy groups are preferably in the 4-position, namely in the trans position, cyclohexylmethyl, cyclohexylethyl, cyclohexylpropyl, endomethylene cyclohexyl, endomethylene cyclohexenyl, endomethylene cyclohexylmethyl, endomethylene cyclohexenyl methyl.
The following benzenesulfonamides, for example, are suitable for the production of the starting materials, only the most important ones being listed.
a) Phthalimidoalkylbenzenesulfonamides such as:
EMI2.1
EMI2.2
ss) corresponding tetra- and hexahydrophthalimido alkylbenzenesulfonamides such as:
EMI2.3
7) Endomethylenetetrahydro- and hexahydrophthalimidoalkylbenzenesulfonamides such as:
EMI2.4
EMI3.1
d) Naphthalimidoalkylbenzenesulfonamides such as:
EMI3.2
e) Naphthalene-dicarbonamidoalkylbenzenesulfonamides such as:
EMI3.3
furthermore corresponding compounds whose dicarbonimidoaikyl radicals are in the phenylene radical in meta or o-position to the sulfamide radical, it being possible for the phenylene radical to be substituted in the manner indicated.
The benzenesulfonamides mentioned are expediently prepared by reacting aminoalkyibenzenes with the anhydrides of the aromatic or aliphatic dicarbic acids with heating, chlorosulfurization and conversion of the sulfochlorides with concentrated aqueous ammonia into the amides.
The blood sugar-lowering effect of the process products according to the invention could be determined by feeding them to rabbits in doses of 50 mg / kg and below and determining the blood sugar value by the known method of Hagedern-Jensen or with an autoanalyzer over a longer period of time. For example, it was determined that the
N- [4- (ss-phthalimido-ethyl) -benzenesulfonyl] -
N'-cyclohexylurea after 3 hours at a dose of 50 mg / kg caused a blood sugar decrease of 32%, at a dose of 10 mCg / kg the decrease was 19% and at a dose of 2 mg / kg it was still 10%.
The corresponding N- [4- (ss-phthalimido-α-methyl-ethyl) -benzenesulfonyl] -N'-4-methylcyclohexylurea decreased 3 hours after administration at a dose of
10 mg / kg the blood sugar level by 35%, with a blood sugar level of 2 mg / kg by 17%.
The N- [4 - (] - Tetrahydrophthalimido-ethyl) -benzenesulfonyl] -N'-4-methylcyclohexylurea decreased by 44% at a dose of 10 gm / kg and by 45% at a dose of 2 mg / kg %, at 0.4 mg / kg by 37%.
The values for the corresponding N- [4- (ss-hexahydrophthalimidoethyl) -benzenesulfonyl] -N'-4'-methyl-cyclohexylhafnstoff are 31, 19 and 14%.
In contrast, the well-known N- (4-methyl-benzoisulfonyl) -N'-butylurea is no longer effective in rabbits at a dose of less than 25 mg / kg.
The products of the process should preferably be used for the production of orally administrable preparations with blood sugar-lowering effectiveness for the treatment of diabetes mellitus and can be administered as such or in the form of their salts or in the presence of substances which lead to salt formation. For salt formation, for example, the following can be used: alkaline agents such as alkali or alkaline earth metal hydroxides, carbonates or bicarbonates. Tablets which, in addition to the products of the process, contain the usual auxiliaries and carriers such as talc, starch, lactose, tragacanth or magnesium stearate are preferably used as medical preparations.
A preparation that contains the benzenesulfonyl ureas described as an active ingredient, z. B. a tablet or a powder with or without the additives mentioned is expediently brought into a suitably dosed form.
The dose to be selected is that which is adapted to the effectiveness of the benzenesulfonyl urea used and the desired effect. The dosage per unit is expediently about 0.5 to 100 mg, preferably 2 to 10 mg, but dosage units which are considerably higher or lower can also be used, which if necessary have to be divided or multiplied before administration.
Example N- [4- (ss-naphthalene-1,8-dicarbonimidoethyl) -benzene suifonyl] -N'-n-butylurea a) 19 g of 4-p-naphthalene-1,8-dicarbonimidoethylbenzenesulfonamide, melting point 282 -2g30 C, 13.8 g potassium carbonate (finely powdered) and 400 ml acetone are heated to the boil for 6 hours with stirring and reflux. 5.8 g of n-butyl mustard oil are then added dropwise and the mixture is stirred at the boiling point for 16 hours. The reaction mixture is filtered off with suction, treated with dilute hydrochloric acid and again filtered off with suction.
The N-4 - (- - naphthalene-1,8-dicarbonimidoethyl) -benzenesulfonyl] -N'-n-butyl-thiourea obtained in this way is reprecipitated from about 0.25% aqueous ammonia and dilute hydrochloric acid and from methanol and dioxane recrystallized. Melting point 215-217 C.
b) 1.5 g of N- [4- (ss-naphthalene-1,8-dicarbonimido-ethyl) -benzenesulfonyl] -N'-n-butyl-thiourea are dissolved in 100 ml of 0.5N sodium hydroxide solution on a steam bath.
The solution is then mixed with 3 ml of 30% hydrogen peroxide and heated for 10 minutes on the steam bath. It is cooled and the solution is acidified with dilute hydrochloric acid. The crystalline precipitate is filtered off with suction and reprecipitated from 0.25% strength aqueous ammonia and dilute hydrochloric acid. The N- [4- (ss-naphthalene-1, 8-dicarbonimidäthyl) - benzenesulfonyl] -N'-n-butylurea melts after recrystallization from methanol / dioxane at 188-1900 C.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEF0044343 | 1964-10-30 | ||
| CH1489065A CH518912A (en) | 1964-10-30 | 1965-10-28 | Process for the preparation of benzenesulfonylureas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH502995A true CH502995A (en) | 1971-02-15 |
Family
ID=25715277
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH1243868A CH510692A (en) | 1964-10-30 | 1965-10-28 | Process for the preparation of benzenesulfonylureas |
| CH1243668A CH484078A (en) | 1964-10-30 | 1965-10-28 | Process for the preparation of benzenesulfonylureas |
| CH1243768A CH502995A (en) | 1964-10-30 | 1965-10-28 | Benzene sulphonylureas |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH1243868A CH510692A (en) | 1964-10-30 | 1965-10-28 | Process for the preparation of benzenesulfonylureas |
| CH1243668A CH484078A (en) | 1964-10-30 | 1965-10-28 | Process for the preparation of benzenesulfonylureas |
Country Status (1)
| Country | Link |
|---|---|
| CH (3) | CH510692A (en) |
-
1965
- 1965-10-28 CH CH1243868A patent/CH510692A/en not_active IP Right Cessation
- 1965-10-28 CH CH1243668A patent/CH484078A/en not_active IP Right Cessation
- 1965-10-28 CH CH1243768A patent/CH502995A/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| CH510692A (en) | 1971-07-31 |
| CH484078A (en) | 1970-01-15 |
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