CH550148A - Procede de preparation de sels d'acides p-dihydroxybenzenedisulfoniques. - Google Patents

Procede de preparation de sels d'acides p-dihydroxybenzenedisulfoniques.

Info

Publication number: CH550148A
Authority: CH; Switzerland
Prior art keywords: acid; salt; base; solution; bis
Prior art date: 1972-05-17

Application number

CH732672A

Other languages

English (en)

French (fr)

Original Assignee

Esteve Lab Del Dr Sa

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1972-05-17

Filing date

1972-05-17

Publication date

1974-06-14

1972-05-17 Application filed by Esteve Lab Del Dr Sa filed Critical Esteve Lab Del Dr Sa

1972-05-17 Priority to CH732672A priority Critical patent/CH550148A/fr

1973-01-01 Priority to AR247787A priority patent/AR204506A1/es

1973-04-07 Priority to ES414365A priority patent/ES414365A1/es

1973-05-03 Priority to GB2114173A priority patent/GB1419995A/en

1973-05-09 Priority to AU55467/73A priority patent/AU481129B2/en

1973-05-09 Priority to ZA733134A priority patent/ZA733134B/xx

1973-05-10 Priority to CA170,960A priority patent/CA1024146A/en

1973-05-10 Priority to DE2323723A priority patent/DE2323723A1/de

1973-05-14 Priority to BE131068A priority patent/BE799487A/xx

1973-05-14 Priority to YU1264/73A priority patent/YU41547B/xx

1973-05-15 Priority to DD170840A priority patent/DD107025A5/xx

1973-05-15 Priority to SE7306845A priority patent/SE416729B/xx

1973-05-15 Priority to RO7383592A priority patent/RO72544A/ro

1973-05-15 Priority to NLAANVRAGE7306734,A priority patent/NL179186C/xx

1973-05-15 Priority to RO7300074783A priority patent/RO62887A/ro

1973-05-15 Priority to PL1973162553A priority patent/PL93785B1/pl

1973-05-16 Priority to FR7317709A priority patent/FR2201888B1/fr

1973-05-17 Priority to CS733534A priority patent/CS194162B2/cs

1973-05-17 Priority to HUEE2140A priority patent/HU169471B/hu

1973-05-17 Priority to JP5419273A priority patent/JPS5716982B2/ja

1973-12-26 Priority to US05/427,679 priority patent/US3947448A/en

1974-06-14 Publication of CH550148A publication Critical patent/CH550148A/fr

1975-08-04 Priority to US05/601,834 priority patent/US4038390A/en

1981-10-16 Priority to JP56165550A priority patent/JPS595579B2/ja

Links

CJAZCKUGLFWINJ-UHFFFAOYSA-N 3,4-dihydroxybenzene-1,2-disulfonic acid Chemical compound OC1=CC=C(S(O)(=O)=O)C(S(O)(=O)=O)=C1O CJAZCKUGLFWINJ-UHFFFAOYSA-N 0.000 title 2
150000003839 salts Chemical class 0.000 claims abstract description 19
NDGUAAJHDUBETK-UHFFFAOYSA-N 1,4-dihydroxycyclohexa-3,5-diene-1,2-disulfonic acid Chemical compound OC1=CC(S(O)(=O)=O)C(O)(S(O)(=O)=O)C=C1 NDGUAAJHDUBETK-UHFFFAOYSA-N 0.000 claims abstract description 17
239000002253 acid Substances 0.000 claims abstract description 13
-1 cyclic amine Chemical class 0.000 claims abstract description 12
229910052751 metal Inorganic materials 0.000 claims abstract description 6
150000001768 cations Chemical class 0.000 claims abstract description 5
239000002184 metal Substances 0.000 claims abstract description 5
150000003973 alkyl amines Chemical class 0.000 claims abstract description 3
238000000034 method Methods 0.000 claims description 9
QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 6
238000000354 decomposition reaction Methods 0.000 claims description 4
229910021529 ammonia Inorganic materials 0.000 claims description 3
229910017464 nitrogen compound Inorganic materials 0.000 claims description 3
150000002830 nitrogen compounds Chemical class 0.000 claims description 3
QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims description 3
150000001450 anions Chemical class 0.000 claims description 2
150000004982 aromatic amines Chemical class 0.000 claims description 2
238000004519 manufacturing process Methods 0.000 claims 1
239000003513 alkali Substances 0.000 abstract 2
239000002585 base Substances 0.000 abstract 2
229940030225 antihemorrhagics Drugs 0.000 abstract 1
239000003795 chemical substances by application Substances 0.000 abstract 1
230000000025 haemostatic effect Effects 0.000 abstract 1
210000003780 hair follicle Anatomy 0.000 abstract 1
150000002739 metals Chemical class 0.000 abstract 1
230000003472 neutralizing effect Effects 0.000 abstract 1
239000000243 solution Substances 0.000 description 19
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 8
239000000203 mixture Substances 0.000 description 7
238000006386 neutralization reaction Methods 0.000 description 6
XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 description 6
239000000047 product Substances 0.000 description 6
HDTBZPJATJFDOG-UHFFFAOYSA-N [NH4+].[NH4+].OC1=CC(S([O-])(=O)=O)C(O)(S([O-])(=O)=O)C=C1 Chemical compound [NH4+].[NH4+].OC1=CC(S([O-])(=O)=O)C(O)(S([O-])(=O)=O)C=C1 HDTBZPJATJFDOG-UHFFFAOYSA-N 0.000 description 5
239000007864 aqueous solution Substances 0.000 description 5
238000002360 preparation method Methods 0.000 description 5
238000010992 reflux Methods 0.000 description 5
HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 4
238000001914 filtration Methods 0.000 description 4
238000002844 melting Methods 0.000 description 4
230000008018 melting Effects 0.000 description 4
239000002244 precipitate Substances 0.000 description 4
PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 3
KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
238000007792 addition Methods 0.000 description 3
238000002425 crystallisation Methods 0.000 description 3
230000008025 crystallization Effects 0.000 description 3
239000012153 distilled water Substances 0.000 description 3
239000007788 liquid Substances 0.000 description 3
238000001953 recrystallisation Methods 0.000 description 3
239000002904 solvent Substances 0.000 description 3
CTLTUPWEUCZSIP-UHFFFAOYSA-N 1,4-dihydroxycyclohexa-2,4-diene-1-sulfonic acid Chemical class OC1=CCC(O)(S(O)(=O)=O)C=C1 CTLTUPWEUCZSIP-UHFFFAOYSA-N 0.000 description 2
RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
BAVYZALUXZFZLV-UHFFFAOYSA-N Methylamine Chemical compound NC BAVYZALUXZFZLV-UHFFFAOYSA-N 0.000 description 2
KKWDPSOYNDAZDR-UHFFFAOYSA-N N1CCNCC1.OC1(C(C=C(C=C1)O)S(=O)(=O)O)S(=O)(=O)O Chemical compound N1CCNCC1.OC1(C(C=C(C=C1)O)S(=O)(=O)O)S(=O)(=O)O KKWDPSOYNDAZDR-UHFFFAOYSA-N 0.000 description 2
QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
150000003863 ammonium salts Chemical class 0.000 description 2
OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
150000001875 compounds Chemical class 0.000 description 2
AXZAYXJCENRGIM-UHFFFAOYSA-J dipotassium;tetrabromoplatinum(2-) Chemical compound [K+].[K+].[Br-].[Br-].[Br-].[Br-].[Pt+2] AXZAYXJCENRGIM-UHFFFAOYSA-J 0.000 description 2
238000004821 distillation Methods 0.000 description 2
230000000694 effects Effects 0.000 description 2
238000010438 heat treatment Methods 0.000 description 2
150000003956 methylamines Chemical class 0.000 description 2
VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 description 2
SNKQZROJNVIEFC-UHFFFAOYSA-N perchloric acid;piperazine Chemical compound OCl(=O)(=O)=O.C1CNCCN1 SNKQZROJNVIEFC-UHFFFAOYSA-N 0.000 description 2
229960003506 piperazine hexahydrate Drugs 0.000 description 2
AVRVZRUEXIEGMP-UHFFFAOYSA-N piperazine;hexahydrate Chemical compound O.O.O.O.O.O.C1CNCCN1 AVRVZRUEXIEGMP-UHFFFAOYSA-N 0.000 description 2
229910001487 potassium perchlorate Inorganic materials 0.000 description 2
239000007787 solid Substances 0.000 description 2
RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 1
DPPPIVFSKJLJDJ-UHFFFAOYSA-N 1,4-dihydroxycyclohexa-3,5-diene-1,2-disulfonic acid;piperazine Chemical compound C1CNCCN1.C1CNCCN1.OC1=CC(S(O)(=O)=O)C(O)(S(O)(=O)=O)C=C1 DPPPIVFSKJLJDJ-UHFFFAOYSA-N 0.000 description 1
FEWJPZIEWOKRBE-UHFFFAOYSA-M 3-carboxy-2,3-dihydroxypropanoate Chemical compound OC(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-M 0.000 description 1
206010007191 Capillary fragility Diseases 0.000 description 1
241000699670 Mus sp. Species 0.000 description 1
241000283973 Oryctolagus cuniculus Species 0.000 description 1
CYTYCFOTNPOANT-UHFFFAOYSA-N Perchloroethylene Chemical group ClC(Cl)=C(Cl)Cl CYTYCFOTNPOANT-UHFFFAOYSA-N 0.000 description 1
235000014676 Phragmites communis Nutrition 0.000 description 1
QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 description 1
230000007059 acute toxicity Effects 0.000 description 1
231100000403 acute toxicity Toxicity 0.000 description 1
230000001476 alcoholic effect Effects 0.000 description 1
150000001448 anilines Chemical class 0.000 description 1
230000000740 bleeding effect Effects 0.000 description 1
238000009835 boiling Methods 0.000 description 1
238000006243 chemical reaction Methods 0.000 description 1
238000001816 cooling Methods 0.000 description 1
239000013078 crystal Substances 0.000 description 1
230000018044 dehydration Effects 0.000 description 1
238000006297 dehydration reaction Methods 0.000 description 1
RQBFDSXRLNYOFZ-UHFFFAOYSA-L dipotassium 1,4-dihydroxycyclohexa-3,5-diene-1,2-disulfonate Chemical compound [K+].OC1(C(C=C(C=C1)O)S(=O)(=O)[O-])S(=O)(=O)[O-].[K+] RQBFDSXRLNYOFZ-UHFFFAOYSA-L 0.000 description 1
239000000839 emulsion Substances 0.000 description 1
238000001704 evaporation Methods 0.000 description 1
230000008020 evaporation Effects 0.000 description 1
230000002349 favourable effect Effects 0.000 description 1
230000004927 fusion Effects 0.000 description 1
230000002439 hemostatic effect Effects 0.000 description 1
229910052739 hydrogen Inorganic materials 0.000 description 1
239000012535 impurity Substances 0.000 description 1
238000001727 in vivo Methods 0.000 description 1
238000002329 infrared spectrum Methods 0.000 description 1
231100000636 lethal dose Toxicity 0.000 description 1
231100000053 low toxicity Toxicity 0.000 description 1
235000016337 monopotassium tartrate Nutrition 0.000 description 1
229910052760 oxygen Inorganic materials 0.000 description 1
239000008188 pellet Substances 0.000 description 1
230000000144 pharmacologic effect Effects 0.000 description 1
KYKNRZGSIGMXFH-ZVGUSBNCSA-M potassium bitartrate Chemical compound [K+].OC(=O)[C@H](O)[C@@H](O)C([O-])=O KYKNRZGSIGMXFH-ZVGUSBNCSA-M 0.000 description 1
229940081543 potassium bitartrate Drugs 0.000 description 1
OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 description 1
229910052939 potassium sulfate Inorganic materials 0.000 description 1
235000011151 potassium sulphates Nutrition 0.000 description 1
239000000843 powder Substances 0.000 description 1
230000001681 protective effect Effects 0.000 description 1
230000001012 protector Effects 0.000 description 1
238000003756 stirring Methods 0.000 description 1
238000006277 sulfonation reaction Methods 0.000 description 1
229910052717 sulfur Inorganic materials 0.000 description 1
235000002906 tartaric acid Nutrition 0.000 description 1
239000011975 tartaric acid Substances 0.000 description 1
229950011008 tetrachloroethylene Drugs 0.000 description 1
231100001274 therapeutic index Toxicity 0.000 description 1

Classifications

- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C309/00—Sulfonic acids; Halides, esters, or anhydrides thereof
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P7/00—Drugs for disorders of the blood or the extracellular fluid
- A61P7/04—Antihaemorrhagics; Procoagulants; Haemostatic agents; Antifibrinolytic agents

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Health & Medical Sciences (AREA)
Medicinal Chemistry (AREA)
Engineering & Computer Science (AREA)
Diabetes (AREA)
Chemical Kinetics & Catalysis (AREA)
General Chemical & Material Sciences (AREA)
Bioinformatics & Cheminformatics (AREA)
Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
Hematology (AREA)
Pharmacology & Pharmacy (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)
Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)

CH732672A 1972-05-17 1972-05-17 Procede de preparation de sels d'acides p-dihydroxybenzenedisulfoniques. CH550148A (fr)

Priority Applications (23)

Application Number	Priority Date	Filing Date	Title
CH732672A CH550148A (fr)	1972-05-17	1972-05-17	Procede de preparation de sels d'acides p-dihydroxybenzenedisulfoniques.
AR247787A AR204506A1 (es)	1972-05-17	1973-01-01	Procedimiento de preparacion de sales de acidos p-dihidroxibencenodisulfonicos
ES414365A ES414365A1 (es)	1972-05-17	1973-04-07	Procedimiento para la preparacion de nuevos derivados del acido p-dihidroxibencenodisulfonico.
GB2114173A GB1419995A (en)	1972-05-17	1973-05-03	Process for preparing p-dihydroxy benzene disulphonic acid derivatives
AU55467/73A AU481129B2 (en)	1972-05-17	1973-05-09	Process for preparing novel p-dihydroxy benzene disulfonic acid derivatives
ZA733134A ZA733134B (en)	1972-05-17	1973-05-09	Novel salts of p-dinydroxy benzene disulfonic acids
CA170,960A CA1024146A (en)	1972-05-17	1973-05-10	Process for preparing novel p-dihydroxy benzene disulfonic acid derivatives
DE2323723A DE2323723A1 (de)	1972-05-17	1973-05-10	Verfahren zur herstellung von neuen derivaten der p-dihydroxybenzoldisulfonsaeure
BE131068A BE799487A (fr)	1972-05-17	1973-05-14	Procede de preparation de nouveaux derives d'acide p-dihydroxybenzenedisulfonique
YU1264/73A YU41547B (en)	1972-05-17	1973-05-14	Process for obtaining new derivatives of p-dyhydroxibenzen-disuephonic acid
SE7306845A SE416729B (sv)	1972-05-17	1973-05-15	Forfarande for framstellning av salter av p-dihydroxibensendisulfonsyra
DD170840A DD107025A5 (ja)	1972-05-17	1973-05-15
RO7383592A RO72544A (ro)	1972-05-17	1973-05-15	Procedeu de obtinere a unor derivati ai acidului p-dihidroxibenzendisulfonic
NLAANVRAGE7306734,A NL179186C (nl)	1972-05-17	1973-05-15	Werkwijze voor het bereiden en/of vervaardigen van een geneesmiddel met hemostatische en capillair beschermende werking op basis van een zout van een p-dihydroxybenzeensulfonzuur en werkwijze voor het bereiden van een verbinding, geschikt voor gebruik bij de bereiding van een dergelijk geneesmiddel.
RO7300074783A RO62887A (fr)	1972-05-17	1973-05-15	Procede pour obtenir des derives d'acide p-dihydroxybehzendisulfonique
PL1973162553A PL93785B1 (en)	1972-05-17	1973-05-15	Process for preparing p-dihydroxy benzene disulphonic acid derivatives[gb1419995a]
FR7317709A FR2201888B1 (ja)	1972-05-17	1973-05-16
CS733534A CS194162B2 (en)	1972-05-17	1973-05-17	Process for preparing salts of p-dihydroxybenzendisulphonic acid
HUEE2140A HU169471B (ja)	1972-05-17	1973-05-17
JP5419273A JPS5716982B2 (ja)	1972-05-17	1973-05-17
US05/427,679 US3947448A (en)	1972-05-17	1973-12-26	Salts of novel p-dihydroxybenezene disulfonic acids
US05/601,834 US4038390A (en)	1972-05-17	1975-08-04	Salts of p-dihydroxybenzene disulfonic acids for combatting hemorrhages and fragility of the capillaries
JP56165550A JPS595579B2 (ja)	1972-05-17	1981-10-16	ｐ−ジヒドロキシベンゼンジスルホン酸の塩の製造方法

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CH732672A CH550148A (fr)	1972-05-17	1972-05-17	Procede de preparation de sels d'acides p-dihydroxybenzenedisulfoniques.

Publications (1)

Publication Number	Publication Date
CH550148A true CH550148A (fr)	1974-06-14

Family

ID=4323374

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CH732672A CH550148A (fr)	1972-05-17	1972-05-17	Procede de preparation de sels d'acides p-dihydroxybenzenedisulfoniques.

Country Status (4)

Country	Link
JP (1)	JPS595579B2 (ja)
BE (1)	BE799487A (ja)
CH (1)	CH550148A (ja)
ZA (1)	ZA733134B (ja)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
AR204506A1 (es) *	1972-05-17	1976-02-12	Esteve Labor Dr	Procedimiento de preparacion de sales de acidos p-dihidroxibencenodisulfonicos

1972
- 1972-05-17 CH CH732672A patent/CH550148A/fr not_active IP Right Cessation
1973
- 1973-05-09 ZA ZA733134A patent/ZA733134B/xx unknown
- 1973-05-14 BE BE131068A patent/BE799487A/xx not_active IP Right Cessation
1981
- 1981-10-16 JP JP56165550A patent/JPS595579B2/ja not_active Expired

Also Published As

Publication number	Publication date
AU5546773A (en)	1974-11-14
JPS5798251A (en)	1982-06-18
ZA733134B (en)	1974-04-24
BE799487A (fr)	1973-11-14
JPS595579B2 (ja)	1984-02-06

Legal Events

Date	Code	Title	Description
1983-09-30	PUE	Assignment	Owner name: PROVESAN S.A.
1992-07-31	PL	Patent ceased

Publication	Publication Date	Title
MC1231A1 (fr)	1979-10-26	Nouveaux benzamides heterocycliques substitues,leurs procedes de preparation et leur application comme modificateurs du comportement
FR2571366A1 (fr)	1986-04-11	Procede de preparation de la l-carnitine et de ses sels
CH550148A (fr)	1974-06-14	Procede de preparation de sels d'acides p-dihydroxybenzenedisulfoniques.
US4346045A (en)	1982-08-24	Process for resolving DL-S-benzoyl-β-mercaptoisobutyric acid, and products obtained
FR2476079A1 (fr)	1981-08-21	Nouveaux derives tetrahydroquinaldiniques, leur procede de preparation et leur utilisation dans la production de flumequine
US2481597A (en)	1949-09-13	Substituted propionic acids and processes of preparing the same
NO134669B (ja)	1976-08-16
FR2547726A1 (fr)	1984-12-28	Acide 2-(4-biphenylyl)-4-hexenoique et ses derives ayant une activite anti-inflammatoire
BE876900A (fr)	1979-10-01	Procede de production de pyrrolidine-2-ones a partir de 3-pyrroline-2-ones et de production de 3-pyrroline-2-ones
BE557074A (ja)
CH558340A (en)	1975-01-31	Dihydroxybenzenedisulphonic acid derivs - prepd from dihydroxybenzene - disulphonic acid and base
CH357729A (fr)	1961-10-31	Procédé pour la préparation de glutathion
BE513130A (ja)
BE483827A (ja)
FR2575469A1 (fr)	1986-07-04	N-imidazolylmethyl-diphenylazomethines, leur preparation et leur application en therapeutique
DD234011A5 (de)	1986-03-19	Verfahren zur herstellung neuer timald-zwischen-produkten
BE553991A (ja)
BE495129A (ja)
BE543002A (ja)
BE527937A (ja)
CH281899A (fr)	1952-03-31	Procédé de préparation d'un nouveau dérivé de l'a-éthylacétoacétate d'éthyle.
BE533436A (ja)
CH346221A (fr)	1960-05-15	Procédé de préparation de dérivés de la pipérazine
CH527825A (fr)	1972-09-15	Procédé de fabrication de composés présentant une action thérapeutique
BE543003A (ja)