CH449046A - Process for the production of new amino acids - Google Patents
Process for the production of new amino acidsInfo
- Publication number
- CH449046A CH449046A CH1468766A CH1468766A CH449046A CH 449046 A CH449046 A CH 449046A CH 1468766 A CH1468766 A CH 1468766A CH 1468766 A CH1468766 A CH 1468766A CH 449046 A CH449046 A CH 449046A
- Authority
- CH
- Switzerland
- Prior art keywords
- formula
- compound
- group
- salts
- radical
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 14
- 150000001413 amino acids Chemical class 0.000 title claims description 5
- 238000004519 manufacturing process Methods 0.000 title description 3
- 150000001875 compounds Chemical class 0.000 claims description 22
- 150000003839 salts Chemical class 0.000 claims description 15
- -1 nitromethyl group Chemical group 0.000 claims description 10
- 125000003277 amino group Chemical group 0.000 claims description 3
- 125000004093 cyano group Chemical group *C#N 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical group [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052801 chlorine Inorganic materials 0.000 claims description 2
- 229910052731 fluorine Inorganic materials 0.000 claims description 2
- 125000004005 formimidoyl group Chemical group [H]\N=C(/[H])* 0.000 claims description 2
- 125000005843 halogen group Chemical group 0.000 claims description 2
- 230000001419 dependent effect Effects 0.000 claims 3
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 claims 2
- XXJGBENTLXFVFI-UHFFFAOYSA-N 1-amino-methylene Chemical compound N[CH2] XXJGBENTLXFVFI-UHFFFAOYSA-N 0.000 claims 1
- 125000001309 chloro group Chemical group Cl* 0.000 claims 1
- 125000001153 fluoro group Chemical group F* 0.000 claims 1
- 150000003254 radicals Chemical class 0.000 claims 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 9
- 239000002253 acid Substances 0.000 description 8
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 229910052739 hydrogen Inorganic materials 0.000 description 6
- 239000001257 hydrogen Substances 0.000 description 6
- 150000007513 acids Chemical class 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 4
- 239000007858 starting material Substances 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- 239000002585 base Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000006722 reduction reaction Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- ZHNUHDYFZUAESO-UHFFFAOYSA-N Formamide Chemical compound NC=O ZHNUHDYFZUAESO-UHFFFAOYSA-N 0.000 description 2
- YZCKVEUIGOORGS-UHFFFAOYSA-N Hydrogen atom Chemical compound [H] YZCKVEUIGOORGS-UHFFFAOYSA-N 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 229910052987 metal hydride Inorganic materials 0.000 description 2
- 150000004681 metal hydrides Chemical class 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- KWYUFKZDYYNOTN-UHFFFAOYSA-M potassium hydroxide Inorganic materials [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- QXQAPNSHUJORMC-UHFFFAOYSA-N 1-chloro-4-propylbenzene Chemical compound CCCC1=CC=C(Cl)C=C1 QXQAPNSHUJORMC-UHFFFAOYSA-N 0.000 description 1
- FZKCAHQKNJXICB-UHFFFAOYSA-N 2,1-benzoxazole Chemical compound C1=CC=CC2=CON=C21 FZKCAHQKNJXICB-UHFFFAOYSA-N 0.000 description 1
- HVBSAKJJOYLTQU-UHFFFAOYSA-N 4-aminobenzenesulfonic acid Chemical compound NC1=CC=C(S(O)(=O)=O)C=C1 HVBSAKJJOYLTQU-UHFFFAOYSA-N 0.000 description 1
- ALYNCZNDIQEVRV-UHFFFAOYSA-N 4-aminobenzoic acid Chemical compound NC1=CC=C(C(O)=O)C=C1 ALYNCZNDIQEVRV-UHFFFAOYSA-N 0.000 description 1
- WUBBRNOQWQTFEX-UHFFFAOYSA-N 4-aminosalicylic acid Chemical compound NC1=CC=C(C(O)=O)C(O)=C1 WUBBRNOQWQTFEX-UHFFFAOYSA-N 0.000 description 1
- FJKROLUGYXJWQN-UHFFFAOYSA-N 4-hydroxybenzoic acid Chemical compound OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 description 1
- 229940090248 4-hydroxybenzoic acid Drugs 0.000 description 1
- 239000004475 Arginine Substances 0.000 description 1
- 241000282472 Canis lupus familiaris Species 0.000 description 1
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 1
- 244000248349 Citrus limon Species 0.000 description 1
- 235000005979 Citrus limon Nutrition 0.000 description 1
- 241000282326 Felis catus Species 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- ODKSFYDXXFIFQN-BYPYZUCNSA-P L-argininium(2+) Chemical compound NC(=[NH2+])NCCC[C@H]([NH3+])C(O)=O ODKSFYDXXFIFQN-BYPYZUCNSA-P 0.000 description 1
- KDXKERNSBIXSRK-YFKPBYRVSA-N L-lysine Chemical compound NCCCC[C@H](N)C(O)=O KDXKERNSBIXSRK-YFKPBYRVSA-N 0.000 description 1
- FFEARJCKVFRZRR-BYPYZUCNSA-N L-methionine Chemical compound CSCC[C@H](N)C(O)=O FFEARJCKVFRZRR-BYPYZUCNSA-N 0.000 description 1
- QIVBCDIJIAJPQS-VIFPVBQESA-N L-tryptophane Chemical compound C1=CC=C2C(C[C@H](N)C(O)=O)=CNC2=C1 QIVBCDIJIAJPQS-VIFPVBQESA-N 0.000 description 1
- KDXKERNSBIXSRK-UHFFFAOYSA-N Lysine Natural products NCCCCC(N)C(O)=O KDXKERNSBIXSRK-UHFFFAOYSA-N 0.000 description 1
- 239000004472 Lysine Substances 0.000 description 1
- 235000011430 Malus pumila Nutrition 0.000 description 1
- 235000015103 Malus silvestris Nutrition 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 241000699670 Mus sp. Species 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 241000283973 Oryctolagus cuniculus Species 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 208000030555 Pygmy Diseases 0.000 description 1
- QIVBCDIJIAJPQS-UHFFFAOYSA-N Tryptophan Natural products C1=CC=C2C(CC(N)C(O)=O)=CNC2=C1 QIVBCDIJIAJPQS-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 229960000583 acetic acid Drugs 0.000 description 1
- YKIOKAURTKXMSB-UHFFFAOYSA-N adams's catalyst Chemical compound O=[Pt]=O YKIOKAURTKXMSB-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 125000002723 alicyclic group Chemical group 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 229910000288 alkali metal carbonate Inorganic materials 0.000 description 1
- 150000008041 alkali metal carbonates Chemical class 0.000 description 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 150000001447 alkali salts Chemical class 0.000 description 1
- 229910001860 alkaline earth metal hydroxide Inorganic materials 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 229960004909 aminosalicylic acid Drugs 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- ODKSFYDXXFIFQN-UHFFFAOYSA-N arginine Natural products OC(=O)C(N)CCCNC(N)=N ODKSFYDXXFIFQN-UHFFFAOYSA-N 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 239000012876 carrier material Substances 0.000 description 1
- 238000010531 catalytic reduction reaction Methods 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 125000004494 ethyl ester group Chemical group 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 239000012362 glacial acetic acid Substances 0.000 description 1
- 210000002837 heart atrium Anatomy 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- UWYVPFMHMJIBHE-OWOJBTEDSA-N hydroxymaleic acid group Chemical group O/C(/C(=O)O)=C/C(=O)O UWYVPFMHMJIBHE-OWOJBTEDSA-N 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910000000 metal hydroxide Inorganic materials 0.000 description 1
- 150000004692 metal hydroxides Chemical class 0.000 description 1
- 229930182817 methionine Natural products 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- PSZYNBSKGUBXEH-UHFFFAOYSA-N naphthalene-1-sulfonic acid Chemical class C1=CC=C2C(S(=O)(=O)O)=CC=CC2=C1 PSZYNBSKGUBXEH-UHFFFAOYSA-N 0.000 description 1
- 230000001537 neural effect Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 125000002560 nitrile group Chemical group 0.000 description 1
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 238000007911 parenteral administration Methods 0.000 description 1
- 239000000825 pharmaceutical preparation Substances 0.000 description 1
- 230000000144 pharmacologic effect Effects 0.000 description 1
- WLJVXDMOQOGPHL-UHFFFAOYSA-N phenylacetic acid Chemical compound OC(=O)CC1=CC=CC=C1 WLJVXDMOQOGPHL-UHFFFAOYSA-N 0.000 description 1
- 235000011007 phosphoric acid Nutrition 0.000 description 1
- 150000003016 phosphoric acids Chemical class 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 229960004889 salicylic acid Drugs 0.000 description 1
- 238000007127 saponification reaction Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910000033 sodium borohydride Inorganic materials 0.000 description 1
- 239000012279 sodium borohydride Substances 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Substances [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 150000003460 sulfonic acids Chemical class 0.000 description 1
- 239000000052 vinegar Substances 0.000 description 1
- 235000021419 vinegar Nutrition 0.000 description 1
- 235000014101 wine Nutrition 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- 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
- A61K31/185—Acids; Anhydrides, halides or salts thereof, e.g. sulfur acids, imidic, hydrazonic or hydroximic acids
- A61K31/19—Carboxylic acids, e.g. valproic acid
- A61K31/195—Carboxylic acids, e.g. valproic acid having an amino group
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C227/00—Preparation of compounds containing amino and carboxyl groups bound to the same carbon skeleton
- C07C227/04—Formation of amino groups in compounds containing carboxyl groups
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material 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)
Description
Verfahren zur Herstellung neuer Aminosaäaren
Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung von Aminosäuren der allgemeinen Formel
EMI1.1
worin R ein Halogenatom, z. B. ein Fluor-, Chloroder Bromatom, oder das Pseudohalogen Trifluormethyl, bedeutet, und ihrer Salze.
Die neuen Verbindungen besitzen wertvolle pharmakologische, insbesondere zentralhemmende Eigenschaften. So hemmen sie beispielsweise bei Versuchen an Mäusen, Katzen, Kaninchen und Hunden die Akti- vität von Neuren, die an der Steuerung der Motorik beteiligt sind. Sie können dementsprechend als zentralhemmende Mittel verwendet werden. Die neuen Verbindungen sind aber auch als Zwischenprodukte, z. B. zur Herstellung von Heilmitteln, wertvoll.
Besonders hervorzuheben ist die y-Amino-j-(p- chlorphenyl)-buttersäure.
Das erfindungsgemässe Verfahren zur Herstellung der neuen Verbindungen ist dadurch gekennzeichnet, dass man eine Verbindung der Formel
EMI1.2
worin R die angegebene Bedeutung hat, Y für die Cyanogruppe, die Iminomethyl-oder Hydroxyiminome- thylgruppe oder eine Gruppe der Formel-C2 1, worin A für einen durch Reduktion in die Aminogruppe iiberfiihrbaren Rest steht, bedeutet, reduziert.
Durch die Reduktion in die Aminogruppe über- führbare Reste A sind z. B. (a-Aralkyl)-aminomethylreste, wie Benzylaminomethylreste, oder Carbobenzoxy- aminomethylreste.
Die genannten Gruppen können in üblicher Weise reduziert werden. Nitrogruppen können beispielsweise mit nascierendem Wasserstoff, z. B. mit Metallen, wie mit Eisen und Mineralsäuren oder mit Zink und Säu- ren oder Alkalimetallhydroxyden, oder mit katalytisch erregtem Wasserstoff reduziert werden. Nitrilgruppen können z. B. mit nascierendem Wasserstoff, z. B. mit Metallen, wie Natrium in niederen Alkanolen, wie Athanol oder Butanol, oder mit katalytisch erregtem Wasserstoff reduziert werden. Iminomethylreste kön- nen beispielsweise mit Metallhydriden, z. B. Alkalime- tallerdmetallhydriden, wie Alkaliborhydriden, z. B.
Natriumborhydrid oder mit katalytisch erregtem Was- serstoff hydriert werden. Die Reduktion der (a-Aral kyl)-aminomethylgruppen und der Carbobenzoxyami- nomethylgruppen kann z. B. mit katalytisch erregtem Wasserstoff durchgeführt werden. Die katalytische Reduktion erfolgt beispielsweise mit Wasserstoff in Gegenwart van Metallkatalysatoren, wie Nickel-, Palladium-oder Platinkatalysatoren, vorzugsweise in organischen Lösungsmitteln, wie niederen Alkanolen, wie z. B. Methanol oder Amiden, wie z. B. Formamid oder Dimethylformamid, oder Eisessig, gegebenenfalls in Gegenwart von Ammoniak.
Die genannten Reaktionen können in üblicher Weise durchgeführt werden.
Je nach den Verfahrensbedingungen und Ausgangsstoffen erhält man die Endstoffe in freier Form oder in der ebenfalls inder Erfindung inbegriffenen Form ihrer Salze.
So können beispielsweise basische, neurale, saure oder gemischte Salze, gegebenenfalls auch Hemi-, Mono-, Sesqui-oder Polyhydrate davon erhalten werden. Die Salze der neuen Verbindungen können in an sich bekannter Weise in die freien Verbindungen über- geführt werden ; Säureadditionssalze z. B. mit basischen Mitteln, wie Alkalien oder Ionenaustauscher, Salze mit Basen durch Reaktion mit sauren Mitteln, wie Säuren.
Andrerseits können erhaltene freie Aminosäuren mit Basen, insbesondere mit therapeutisch verwendbaren
Basen, z. B. Metallhydroxyden oder basischen Salzen, speziell Rlkali-oder Erdalkalimetallhydroxyden, wie atrium-, Kalium- oder Calciumhydroxyd, Alkalime- tallcarbonaten, wie Natrium-oder Kaliumcarbonat,
Ammoniak oder organischen Aminen, oder mit organi schen oder anorganischen Säuren, Salze bilden. Zur He2stellung von Säureadditionssalzen werden insbeson dere therapeutisch verwendbare Säuren verwendet, z. B.
Halogenwasserstoffsäuren, Schwefelsäure, PhosphorsÏuren, SalpetersÏure, PerchlorsÏure ; aliphatische, alicyclische, aromatische oder heterocyclische Carbon oder Sulfonsäuren, wie Ameisen-, Essig-, Propion-, Bernstein-, Glykol-, Milch-, ¯pfel-, Wein-, Zitronen-, Ascorbin-, Malein-, Hydroxymalein-oder Brenztrau- bensäure ; Phenylessig-, Benzoe-, p-Aminobenzoe-, Anthranil-, p-Hydroxy-benzoe-, Salicyl-oder p-Aminosalicylsäure, EmbonsÏure, Methansulfon-, Athansul- fon-, Hydroxyäthansulfon-, ¯thylensulfonsÏure ; Halo genbenzolsulfon-, Toluolsulfon-, Naphthalinsulfonsäu- ren oder Sulfanilsäure ;
Methionin, Tryptophan, Lysin oder Arginin.
Diese oder andere Salze der neuen Verbindungen, wie z. B. die Pirate, können auch zur Reinigung der erhaltenen freien Verbindungen dienen, indem man die freien Verbindungen in Salze überführt, diese abtrennt und aus den Salzen wiederum die freien Verbindungen freimacht.
Die neuen Verbindungen können in Form von Racematen vorliegen, die sich in üblicher Weise in die optischen Antipoden zerlegen lassen.
F r die erfindungsgemässen Reaktionen werden vornehmlich solche Ausgangsstoffe venwendet, die die oben erwähnten bevorzugten Verbindungen ergeben.
Die Ausgangsstoffe sind bekannt oder können nach an sich bekannten Methoden gewonnen werden.
Die neuen Verbindungen können als Heilmittel, z. B. in Form pharmazeutischer PrÏparate, Verwendung finden, welche sie in freier Form oder in Form ihrer Salze in Mischung mit einem f r die enterale oder parenterale Applikation geeigneten pharmazeutischen organischen oder anorganische, festen oder fliis sigen Trägermaterial enthalten.
Die neuen Verbindungen können auch in der Tier- medizin, z. B. in einer der oben genannten Formen oder in Form von Futtermitteln oder von Zusatzmit- teln für Tierfutter verwendet werden.
Im folgenden Beispiel sind die Temperaturen in Calsiusgraden angegeben.
Beispiel
2,1 g ¯-Cyano-p-chlor-hydrozimtsÏure werden in 40 ml Äthanol gelöst und in Gegenwart von 5, 5 ml 2-n-Salzsäure bei Normaldruck und Raumtemperatur hydriert. Als Katalysator wird Platinoxyd (PtO2) in einer Menge von n 150mg verwendet. Nach Aufnahme der theoretisch erforderlichen Menge Wasserstoff (448 ml) wird die Hydrierung unterbrochen. Man fil triert den Katalysator ab, wäscht mit ¯thanol und Wasser nach, engt das farblose Filtrat im Wasserstrahl- vakuum bei 40-50''auf ein Restvolumen von 10 ml ein und erhält dadurch eine wässerige Lösung des Hydrochlorids von γ-Amino-¯-(p-chlorphenyl)-butter- säure.
Durch Zusatz von 1-n-Natronlauge wird ein -Wert von 6-7 eingestellt. Dabei kristallisiert die freie γ-Amino-¯-(p-chlorphenyl)-buttersÏure der Formel
EMI2.1
aus, die zur Reinigung aus Wasser umkristallisiert wird ; F. 206-208 . Die als Ausgangsmaterial verwendete ¯-Cyano-p-chlor-hydrozimtsÏure kann aus ihrem Athylester durch Verseifung mit der theoretisch erfor- derlichen Menge 1-n-wässeriger Natronlauge erhalten werden.
In analoger Weise kann man die y-Amino-, (p- bromphenyl)-buttersäure, F. 228-229 erhalten.
Process for the production of new amino acids
The present invention relates to a process for the preparation of amino acids of the general formula
EMI1.1
wherein R is a halogen atom, e.g. B. a fluorine, chlorine or bromine atom, or the pseudohalogen trifluoromethyl, and their salts.
The new compounds have valuable pharmacological, especially central inhibiting properties. In experiments on mice, cats, rabbits and dogs, for example, they inhibit the activity of neurs who are involved in controlling motor skills. Accordingly, they can be used as central inhibitors. The new compounds are also available as intermediates, e.g. B. for the production of medicines, valuable.
Particularly noteworthy is the γ-amino-j- (p-chlorophenyl) butyric acid.
The process according to the invention for preparing the new compounds is characterized in that a compound of the formula
EMI1.2
in which R has the meaning given, Y is the cyano group, the iminomethyl or hydroxyiminomethyl group or a group of the formula C2 1 in which A is a radical which can be converted into the amino group by reduction.
A radicals which can be converted into the amino group by the reduction are z. B. (a-aralkyl) aminomethyl radicals, such as benzylaminomethyl radicals, or carbobenzoxy aminomethyl radicals.
The groups mentioned can be reduced in the usual way. Nitro groups can, for example, with nascent hydrogen, e.g. B. with metals, such as iron and mineral acids or with zinc and acids or alkali metal hydroxides, or with catalytically excited hydrogen. Nitrile groups can e.g. B. with nascent hydrogen, e.g. B. with metals such as sodium in lower alkanols, such as ethanol or butanol, or with catalytically excited hydrogen. Iminomethyl radicals can, for example, with metal hydrides, e.g. B. alkali metal earth metal hydrides, such as alkali borohydrides, z. B.
Sodium borohydride or hydrogenated with catalytically excited hydrogen. The reduction of the (a-Aral kyl) -aminomethylgruppen and the Carbobenzoxyami- nomethylgruppen can, for. B. be carried out with catalytically excited hydrogen. The catalytic reduction is carried out, for example, with hydrogen in the presence of metal catalysts such as nickel, palladium or platinum catalysts, preferably in organic solvents such as lower alkanols, such as. B. methanol or amides, such as. B. formamide or dimethylformamide, or glacial acetic acid, optionally in the presence of ammonia.
The reactions mentioned can be carried out in a customary manner.
Depending on the process conditions and starting materials, the end materials are obtained in free form or in the form of their salts, which is also included in the invention.
For example, basic, neural, acidic or mixed salts, optionally also hemi-, mono-, sesqui- or polyhydrates thereof, can be obtained. The salts of the new compounds can be converted into the free compounds in a manner known per se; Acid addition salts e.g. B. with basic agents such as alkalis or ion exchangers, salts with bases by reaction with acidic agents such as acids.
On the other hand, the free amino acids obtained can have bases, in particular those which can be used therapeutically
Bases, e.g. B. metal hydroxides or basic salts, especially Rlkali or alkaline earth metal hydroxides, such as atrium, potassium or calcium hydroxide, alkali metal carbonates, such as sodium or potassium carbonate,
Ammonia or organic amines, or with organic or inorganic acids, form salts. For the preparation of acid addition salts, therapeutically useful acids are used in particular, e.g. B.
Hydrohalic acids, sulfuric acid, phosphoric acids, nitric acid, perchloric acid; aliphatic, alicyclic, aromatic or heterocyclic carboxylic or sulfonic acids, such as formic, vinegar, propionic, amber, glycol, milk, apple, wine, lemon, ascorbic, maleic, hydroxymaleic or pygmy - benzic acid; Phenylacetic, benzoic, p-aminobenzoic, anthranil, p-hydroxy-benzoic, salicylic or p-aminosalicylic acid, embonsure, methanesulphonic, ethanesulphonic, hydroxyethanesulphonic, ¯thylenesulphonic acid; Halogenbenzenesulfonic, toluenesulfonic, naphthalenesulfonic acids or sulfanilic acid;
Methionine, tryptophan, lysine or arginine.
These or other salts of the new compounds, such as. B. the pirates, can also be used to purify the free compounds obtained by converting the free compounds into salts, separating them and in turn frees the free compounds from the salts.
The new compounds can be in the form of racemates which can be broken down into the optical antipodes in the usual way.
For the reactions according to the invention, those starting materials are primarily used which give the preferred compounds mentioned above.
The starting materials are known or can be obtained by methods known per se.
The new compounds can be used as remedies, e.g. B. in the form of pharmaceutical preparations, which they contain in free form or in the form of their salts mixed with a pharmaceutical, organic or inorganic, solid or liquid carrier material suitable for enteral or parenteral administration.
The new compounds can also be used in veterinary medicine, e.g. B. in one of the forms mentioned above or in the form of feed or additives for animal feed.
In the following example the temperatures are given in Calsius degrees.
example
2.1 g of ¯-cyano-p-chlorohydrozimtsÏure are dissolved in 40 ml of ethanol and hydrogenated in the presence of 5.5 ml of 2N hydrochloric acid at normal pressure and room temperature. Platinum oxide (PtO2) is used as a catalyst in an amount of n 150mg. After the theoretically required amount of hydrogen (448 ml) has been taken up, the hydrogenation is interrupted. The catalyst is filtered off, washed with ethanol and water, the colorless filtrate is concentrated in a water jet vacuum at 40-50 '' to a residual volume of 10 ml and an aqueous solution of the hydrochloride of γ-amino- ¯- (p-chlorophenyl) butyric acid.
A value of 6-7 is set by adding 1N sodium hydroxide solution. The free γ-amino-¯- (p-chlorophenyl) -butyric acid of the formula crystallizes
EMI2.1
from, which is recrystallized from water for purification; F. 206-208. The ¯-cyano-p-chlorohydrocinnamic acid used as starting material can be obtained from its ethyl ester by saponification with the theoretically required amount of 1N aqueous sodium hydroxide solution.
The y-amino- (p-bromophenyl) -butyric acid, mp 228-229, can be obtained in an analogous manner.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1468766A CH449046A (en) | 1963-07-09 | 1963-07-09 | Process for the production of new amino acids |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1468766A CH449046A (en) | 1963-07-09 | 1963-07-09 | Process for the production of new amino acids |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH449046A true CH449046A (en) | 1967-12-31 |
Family
ID=4403000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH1468766A CH449046A (en) | 1963-07-09 | 1963-07-09 | Process for the production of new amino acids |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH449046A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2662354A1 (en) * | 1990-05-23 | 1991-11-29 | Adir | USE OF BACLOFENE FOR OBTAINING MEDICINES FOR THE TREATMENT OF CHICKEN ANGINA. |
| US6576626B2 (en) | 1999-12-09 | 2003-06-10 | Astrazeneca Ab | Aminopropylphosphinic acids |
| US6596711B1 (en) | 1999-12-09 | 2003-07-22 | Astrazeneca Ab | (Aminopropyl)methylphosphinic acids |
| US6919379B2 (en) | 2001-06-08 | 2005-07-19 | Astrazeneca Ab | Compounds useful in reflux disease |
| US7319095B2 (en) | 1999-12-09 | 2008-01-15 | Astrazeneca Ab | Use of GABAB receptor agonists |
| US7718686B2 (en) | 2004-06-24 | 2010-05-18 | Astrazeneca Ab | Imidazole variants as modulators of GABA receptor for the treatment of GI disorders |
| US7745474B2 (en) | 2005-12-23 | 2010-06-29 | Astrazeneca Ab | Imidazole derivatives for the treatment of gastrointestinal disorders |
| US7812026B2 (en) | 2005-12-23 | 2010-10-12 | Astrazeneca Ab | Imidazole derivatives having a positive allosteric GABAB receptor modulator effect and methods of use |
| EP3322691A4 (en) * | 2015-07-13 | 2019-03-27 | Piramal Enterprises Limited | IMPROVED PROCESS FOR THE PREPARATION OF BACLOFEN AND ITS INTERMEDIATE |
-
1963
- 1963-07-09 CH CH1468766A patent/CH449046A/en unknown
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2662354A1 (en) * | 1990-05-23 | 1991-11-29 | Adir | USE OF BACLOFENE FOR OBTAINING MEDICINES FOR THE TREATMENT OF CHICKEN ANGINA. |
| US6576626B2 (en) | 1999-12-09 | 2003-06-10 | Astrazeneca Ab | Aminopropylphosphinic acids |
| US6596711B1 (en) | 1999-12-09 | 2003-07-22 | Astrazeneca Ab | (Aminopropyl)methylphosphinic acids |
| US6841698B2 (en) | 1999-12-09 | 2005-01-11 | Astrazeneca Ab | Aminopropylphosphinic acids |
| US7034176B2 (en) | 1999-12-09 | 2006-04-25 | Astrazeneca Ab | Aminopropylphosphinic acids |
| US7319095B2 (en) | 1999-12-09 | 2008-01-15 | Astrazeneca Ab | Use of GABAB receptor agonists |
| US7807658B2 (en) | 1999-12-09 | 2010-10-05 | Astrazeneca Ab | Use of GabaB receptor agonists |
| US6919379B2 (en) | 2001-06-08 | 2005-07-19 | Astrazeneca Ab | Compounds useful in reflux disease |
| US7718686B2 (en) | 2004-06-24 | 2010-05-18 | Astrazeneca Ab | Imidazole variants as modulators of GABA receptor for the treatment of GI disorders |
| US7745474B2 (en) | 2005-12-23 | 2010-06-29 | Astrazeneca Ab | Imidazole derivatives for the treatment of gastrointestinal disorders |
| US7812026B2 (en) | 2005-12-23 | 2010-10-12 | Astrazeneca Ab | Imidazole derivatives having a positive allosteric GABAB receptor modulator effect and methods of use |
| EP3322691A4 (en) * | 2015-07-13 | 2019-03-27 | Piramal Enterprises Limited | IMPROVED PROCESS FOR THE PREPARATION OF BACLOFEN AND ITS INTERMEDIATE |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CH449645A (en) | Process for the production of new amino acids | |
| CH493528A (en) | 2-(phenylamino or pyridylamino)-pyrimidines anti- - inflammatory antipyretic | |
| DE1695837A1 (en) | Di- and triphenylpropylpiperazines and processes for their preparation | |
| CH449046A (en) | Process for the production of new amino acids | |
| DE2162011C3 (en) | 2-Phenyl-3- (4-methyl-piperazinocarbonyloxy) -1-isoindolinone derivatives, their preparation and pharmaceutical compositions containing them | |
| CH500983A (en) | Aminoisoquinoline derivs spasmolytic depressives | |
| DE2056569B2 (en) | Pyrimidine derivatives and processes for their preparation | |
| DE1001261C2 (en) | Process for the preparation of basic esters of endocyclically substituted almond acids and their salts | |
| CH449646A (en) | Process for the production of new amino acids | |
| DE2527157C2 (en) | Process for the preparation of 2-formylquinoxaline-N → 1 →, N → 4 → -dioxide dimethylacetal | |
| CH455806A (en) | Process for the production of new imidazoles | |
| AT240852B (en) | Process for the preparation of benzimidazole and its derivatives | |
| AT284126B (en) | Process for the preparation of new substituted aminopyrimidines and their salts and optically active isomers | |
| AT269110B (en) | Process for the preparation of the new 1- (ethylaminomethyl) -5-methoxy-benzocyclobutene and its salts | |
| AT238171B (en) | Process for the preparation of N- (2,3-dimethylphenyl) anthranilic acid and its salts | |
| AT339311B (en) | PROCESS FOR THE PREPARATION OF NEW 4,6-DIHYDROXY-7-ALKOXY-QUINOLINE -3-CARBON ACID ESTERS AND THEIR SALT | |
| AT238168B (en) | Process for the preparation of N- (2,3-dimethylphenyl) anthranilic acid and its salts | |
| AT317238B (en) | Process for the preparation of new 3-guanidinoalkyl-thiophenes and of their acid addition salts | |
| AT267527B (en) | Process for the preparation of new substituted aminopyridines, their salts and optically active isomers | |
| CH460017A (en) | Process for the preparation of new nitrothiazole compounds | |
| DE2349900A1 (en) | NEW 4-ETHERS OF 3-AMINO-5-SULPHAMOYLBENZOIC ACIDS | |
| CH513799A (en) | Sedative and tranquillising 9-aminomethyl - 9,10 ethano anthracenes | |
| AT303720B (en) | Process for the production of new 2-aminomethyl-indoles and their salts | |
| AT213864B (en) | Process for the preparation of new analgesic α-amino-β-oxybutyric acid amides | |
| AT215417B (en) | Process for the preparation of new N-carbalkoxy- or -aralkoxyalkyl-β- (3,4-dihydroxyphenyl) -β-hydroxyethylamines and their salts |