IL33476A - Resolution of racemic alanine derivatives - Google Patents
Resolution of racemic alanine derivativesInfo
- Publication number
- IL33476A IL33476A IL33476A IL3347669A IL33476A IL 33476 A IL33476 A IL 33476A IL 33476 A IL33476 A IL 33476A IL 3347669 A IL3347669 A IL 3347669A IL 33476 A IL33476 A IL 33476A
- Authority
- IL
- Israel
- Prior art keywords
- alanine
- hydroxy
- methoxyphenyl
- benzoyl
- dehydroabietylamine
- Prior art date
Links
- QNAYBMKLOCPYGJ-REOHCLBHSA-N L-alanine Chemical class C[C@H](N)C(O)=O QNAYBMKLOCPYGJ-REOHCLBHSA-N 0.000 title description 10
- JVVXZOOGOGPDRZ-SLFFLAALSA-N [(1R,4aS,10aR)-1,4a-dimethyl-7-propan-2-yl-2,3,4,9,10,10a-hexahydrophenanthren-1-yl]methanamine Chemical compound NC[C@]1(C)CCC[C@]2(C)C3=CC=C(C(C)C)C=C3CC[C@H]21 JVVXZOOGOGPDRZ-SLFFLAALSA-N 0.000 claims description 36
- 238000000034 method Methods 0.000 claims description 23
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 claims description 17
- 238000006243 chemical reaction Methods 0.000 claims description 13
- 150000001875 compounds Chemical class 0.000 claims description 13
- 150000003839 salts Chemical class 0.000 claims description 11
- 239000002253 acid Substances 0.000 claims description 10
- 239000000126 substance Substances 0.000 claims description 10
- -1 sulphurio Chemical class 0.000 claims description 7
- ODTCNJWUFHCFJB-ZDUSSCGKSA-N (2s)-2-benzamido-3-(4-hydroxy-3-methoxyphenyl)propanoic acid Chemical compound C1=C(O)C(OC)=CC(C[C@H](NC(=O)C=2C=CC=CC=2)C(O)=O)=C1 ODTCNJWUFHCFJB-ZDUSSCGKSA-N 0.000 claims description 5
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- ODTCNJWUFHCFJB-UHFFFAOYSA-N 2-benzamido-3-(4-hydroxy-3-methoxyphenyl)propanoic acid Chemical compound C1=C(O)C(OC)=CC(CC(NC(=O)C=2C=CC=CC=2)C(O)=O)=C1 ODTCNJWUFHCFJB-UHFFFAOYSA-N 0.000 claims description 4
- BMYNFMYTOJXKLE-UHFFFAOYSA-N 3-azaniumyl-2-hydroxypropanoate Chemical compound NCC(O)C(O)=O BMYNFMYTOJXKLE-UHFFFAOYSA-N 0.000 claims description 4
- WTDRDQBEARUVNC-LURJTMIESA-N L-DOPA Chemical compound OC(=O)[C@@H](N)CC1=CC=C(O)C(O)=C1 WTDRDQBEARUVNC-LURJTMIESA-N 0.000 claims description 4
- WTDRDQBEARUVNC-UHFFFAOYSA-N L-Dopa Natural products OC(=O)C(N)CC1=CC=C(O)C(O)=C1 WTDRDQBEARUVNC-UHFFFAOYSA-N 0.000 claims description 4
- 150000008064 anhydrides Chemical class 0.000 claims description 4
- 150000007529 inorganic bases Chemical class 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 150000007530 organic bases Chemical class 0.000 claims description 3
- 150000007933 aliphatic carboxylic acids Chemical class 0.000 claims description 2
- 239000003513 alkali Substances 0.000 claims description 2
- 229910001854 alkali hydroxide Inorganic materials 0.000 claims description 2
- 229910001860 alkaline earth metal hydroxide Inorganic materials 0.000 claims description 2
- CHIHQLCVLOXUJW-UHFFFAOYSA-N benzoic anhydride Chemical compound C=1C=CC=CC=1C(=O)OC(=O)C1=CC=CC=C1 CHIHQLCVLOXUJW-UHFFFAOYSA-N 0.000 claims description 2
- WYVAMUWZEOHJOQ-UHFFFAOYSA-N propionic anhydride Chemical compound CCC(=O)OC(=O)CC WYVAMUWZEOHJOQ-UHFFFAOYSA-N 0.000 claims description 2
- 125000001931 aliphatic group Chemical group 0.000 claims 1
- 125000005210 alkyl ammonium group Chemical group 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims 1
- 230000006340 racemization Effects 0.000 claims 1
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 114
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 42
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 27
- 229960003767 alanine Drugs 0.000 description 26
- 239000013078 crystal Substances 0.000 description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 23
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 21
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 18
- 239000000203 mixture Substances 0.000 description 17
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 14
- 239000012153 distilled water Substances 0.000 description 14
- 239000003208 petroleum Substances 0.000 description 11
- 235000004279 alanine Nutrition 0.000 description 8
- 238000002425 crystallisation Methods 0.000 description 8
- 239000002244 precipitate Substances 0.000 description 8
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 7
- 230000008025 crystallization Effects 0.000 description 7
- 239000010410 layer Substances 0.000 description 7
- 235000011121 sodium hydroxide Nutrition 0.000 description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 6
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 6
- 238000001035 drying Methods 0.000 description 6
- 238000002844 melting Methods 0.000 description 6
- 230000008018 melting Effects 0.000 description 6
- 238000001953 recrystallisation Methods 0.000 description 5
- 238000010992 reflux Methods 0.000 description 5
- KYEDQSPMZFJTCW-UHFFFAOYSA-N 2-benzamido-3-(2-hydroxy-3-methoxyphenyl)propanoic acid Chemical compound COC1=CC=CC(CC(NC(=O)C=2C=CC=CC=2)C(O)=O)=C1O KYEDQSPMZFJTCW-UHFFFAOYSA-N 0.000 description 4
- QIAFMBKCNZACKA-UHFFFAOYSA-N N-benzoylglycine Chemical compound OC(=O)CNC(=O)C1=CC=CC=C1 QIAFMBKCNZACKA-UHFFFAOYSA-N 0.000 description 4
- NQRYJNQNLNOLGT-UHFFFAOYSA-N Piperidine Chemical compound C1CCNCC1 NQRYJNQNLNOLGT-UHFFFAOYSA-N 0.000 description 4
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 4
- 238000009835 boiling Methods 0.000 description 4
- 229920006395 saturated elastomer Polymers 0.000 description 4
- 238000010792 warming Methods 0.000 description 4
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- 239000011780 sodium chloride Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- MWOOGOJBHIARFG-UHFFFAOYSA-N vanillin Chemical compound COC1=CC(C=O)=CC=C1O MWOOGOJBHIARFG-UHFFFAOYSA-N 0.000 description 3
- FGQOOHJZONJGDT-UHFFFAOYSA-N vanillin Natural products COC1=CC(O)=CC(C=O)=C1 FGQOOHJZONJGDT-UHFFFAOYSA-N 0.000 description 3
- 235000012141 vanillin Nutrition 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- ZAFNJMIOTHYJRJ-UHFFFAOYSA-N Diisopropyl ether Chemical compound CC(C)OC(C)C ZAFNJMIOTHYJRJ-UHFFFAOYSA-N 0.000 description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- 239000007868 Raney catalyst Substances 0.000 description 2
- NPXOKRUENSOPAO-UHFFFAOYSA-N Raney nickel Chemical compound [Al].[Ni] NPXOKRUENSOPAO-UHFFFAOYSA-N 0.000 description 2
- 229910000564 Raney nickel Inorganic materials 0.000 description 2
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 2
- 229940040526 anhydrous sodium acetate Drugs 0.000 description 2
- 238000009903 catalytic hydrogenation reaction Methods 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- HPNMFZURTQLUMO-UHFFFAOYSA-N diethylamine Chemical compound CCNCC HPNMFZURTQLUMO-UHFFFAOYSA-N 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- ODTCNJWUFHCFJB-CYBMUJFWSA-N (2r)-2-benzamido-3-(4-hydroxy-3-methoxyphenyl)propanoic acid Chemical compound C1=C(O)C(OC)=CC(C[C@@H](NC(=O)C=2C=CC=CC=2)C(O)=O)=C1 ODTCNJWUFHCFJB-CYBMUJFWSA-N 0.000 description 1
- PFDUUKDQEHURQC-ZETCQYMHSA-N 3-O-methyldopa Chemical compound COC1=CC(C[C@H](N)C(O)=O)=CC=C1O PFDUUKDQEHURQC-ZETCQYMHSA-N 0.000 description 1
- 239000005711 Benzoic acid Substances 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- PFDUUKDQEHURQC-UHFFFAOYSA-N L-3-methoxytyrosine Natural products COC1=CC(CC(N)C(O)=O)=CC=C1O PFDUUKDQEHURQC-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 235000010233 benzoic acid Nutrition 0.000 description 1
- 125000003236 benzoyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C(*)=O 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 239000012876 carrier material Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000002178 crystalline material Substances 0.000 description 1
- 239000012259 ether extract Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 239000012044 organic layer Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 150000003335 secondary amines Chemical class 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- UQDJGEHQDNVPGU-UHFFFAOYSA-N serine phosphoethanolamine Chemical compound [NH3+]CCOP([O-])(=O)OCC([NH3+])C([O-])=O UQDJGEHQDNVPGU-UHFFFAOYSA-N 0.000 description 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- 229910001948 sodium oxide Inorganic materials 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000006277 sulfonation reaction Methods 0.000 description 1
- 239000001117 sulphuric acid Substances 0.000 description 1
- 235000011149 sulphuric acid Nutrition 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
- 150000005622 tetraalkylammonium hydroxides Chemical class 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
- C07D—HETEROCYCLIC COMPOUNDS
- C07D263/00—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings
- C07D263/02—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings not condensed with other rings
- C07D263/30—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
- C07D263/34—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members 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
- C07D263/36—One oxygen atom
- C07D263/42—One oxygen atom attached in position 5
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C1/00—Building elements of block or other shape for the construction of parts of buildings
- E04C1/39—Building elements of block or other shape for the construction of parts of buildings characterised by special adaptations, e.g. serving for locating conduits, for forming soffits, cornices, or shelves, for fixing wall-plates or door-frames, for claustra
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Pharmacology & Pharmacy (AREA)
- Structural Engineering (AREA)
- Medicinal Chemistry (AREA)
- Civil Engineering (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)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1927068A CH505056A (de) | 1968-12-27 | 1968-12-27 | Verfahren zur Herstellung von L-3-(3',4'-Dihydroxyphenyl)-alanin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IL33476A0 IL33476A0 (en) | 1970-02-19 |
| IL33476A true IL33476A (en) | 1972-08-30 |
Family
ID=4438422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IL33476A IL33476A (en) | 1968-12-27 | 1969-12-02 | Resolution of racemic alanine derivatives |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US3969397A (de) |
| JP (1) | JPS5317589B1 (de) |
| AT (1) | AT293366B (de) |
| BE (1) | BE743495A (de) |
| CH (1) | CH505056A (de) |
| DE (1) | DE1964420C3 (de) |
| ES (1) | ES374928A1 (de) |
| FR (1) | FR2027209A1 (de) |
| GB (1) | GB1235810A (de) |
| IL (1) | IL33476A (de) |
| NL (1) | NL6917789A (de) |
| RO (1) | RO57016A (de) |
| SU (1) | SU398036A3 (de) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3796748A (en) * | 1972-08-16 | 1974-03-12 | Bristol Myers Co | Dehydroabietylammonium d-(-)-2-chloroacetylamino-2-(p-hydroxyphenyl)-acetate |
| US4151198A (en) * | 1978-06-02 | 1979-04-24 | American Cyanamid Company | Resolution of N-acyl-DL (+)-phenylalanines |
| DE3262501D1 (en) * | 1981-10-16 | 1985-04-11 | Ciba Geigy Ag | N-(1'-methyl-2'-methoxyethyl)-n-chloroacetyl-2-ethyl-6-methyl aniline as a herbicide |
| EP0115470B1 (de) * | 1983-01-25 | 1986-12-17 | Ciba-Geigy Ag | Optisch aktives N-(1'-Methyl-2'-methoxyethyl)-N-chloracetyl-2,6-di-methylanilin als Herbizid |
| DE3334849A1 (de) * | 1983-09-27 | 1985-04-04 | Hoechst Ag, 6230 Frankfurt | Verfahren zur racemisierung optisch aktiver aminosaeuren |
| DE3435095C2 (de) * | 1984-09-25 | 1986-07-24 | Degussa Ag, 6000 Frankfurt | Verfahren zur Racemisierung von N-Acetyl-D(L)-α-aminocarbonsäuren |
| US4833273A (en) * | 1986-02-03 | 1989-05-23 | Warner-Lambert Company | Process for the resolution of 1-aminoindanes |
| DE19529293A1 (de) * | 1995-08-09 | 1997-02-13 | Bayer Ag | Verfahren zur Herstellung von racemischen Amino-Derivaten |
| DE19546531A1 (de) * | 1995-12-13 | 1997-06-19 | Degussa | Verfahren zur Racemisierung von N-Acetyl-D(L)-alpha-aminocarbonsäuren |
| US7022872B2 (en) * | 2003-12-19 | 2006-04-04 | Molecular Technologies, Inc. | Method for making fluorine labeled L-Dopa |
| US20130312202A1 (en) | 2011-08-15 | 2013-11-28 | Whirlpool Corporation | Method for real time determination during loading of volumetric load size in a laundry treating appliance |
| CN104945270B (zh) * | 2015-05-01 | 2017-08-15 | 李玉山 | 一种左旋多巴甲酯盐酸盐的合成方法 |
| EP4175937A4 (de) | 2020-07-03 | 2024-10-23 | Council of Scientific and Industrial Research, an Indian Registered Body Incorporated under Regn. of Soc. Act (Act XXI of 1860) | Verfahren zur herstellung von vanillin und anderen substituierten phenylaldehyden |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL299155A (de) * | 1962-10-11 | |||
| US3505385A (en) * | 1962-10-11 | 1970-04-07 | Merck & Co Inc | Alpha-lower alkanoylamino - alpha - hydroxy and/or methoxy substituted benzyl propionitriles |
| US3347928A (en) * | 1963-02-01 | 1967-10-17 | Merck & Co Inc | Process of oxidizing hydroxy phenyl alanines to hydroxy benzyl alkyl ketones |
-
1968
- 1968-12-27 CH CH1927068A patent/CH505056A/de not_active IP Right Cessation
-
1969
- 1969-11-26 NL NL6917789A patent/NL6917789A/xx unknown
- 1969-12-02 IL IL33476A patent/IL33476A/en unknown
- 1969-12-10 RO RO61812A patent/RO57016A/ro unknown
- 1969-12-11 US US04/884,333 patent/US3969397A/en not_active Expired - Lifetime
- 1969-12-16 GB GB61247/69A patent/GB1235810A/en not_active Expired
- 1969-12-22 BE BE743495D patent/BE743495A/xx unknown
- 1969-12-23 DE DE1964420A patent/DE1964420C3/de not_active Expired
- 1969-12-23 AT AT1199269A patent/AT293366B/de not_active IP Right Cessation
- 1969-12-24 FR FR6944896A patent/FR2027209A1/fr not_active Withdrawn
- 1969-12-26 ES ES374928A patent/ES374928A1/es not_active Expired
- 1969-12-26 SU SU1389887A patent/SU398036A3/ru active
- 1969-12-27 JP JP10485869A patent/JPS5317589B1/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| IL33476A0 (en) | 1970-02-19 |
| BE743495A (de) | 1970-06-22 |
| AT293366B (de) | 1971-10-11 |
| SU398036A3 (de) | 1973-09-17 |
| JPS5317589B1 (de) | 1978-06-09 |
| US3969397A (en) | 1976-07-13 |
| RO57016A (de) | 1974-12-15 |
| DE1964420C3 (de) | 1975-10-09 |
| DE1964420B2 (de) | 1975-03-06 |
| GB1235810A (en) | 1971-06-16 |
| NL6917789A (de) | 1970-06-30 |
| DE1964420A1 (de) | 1970-07-16 |
| FR2027209A1 (de) | 1970-09-25 |
| CH505056A (de) | 1971-03-31 |
| ES374928A1 (es) | 1972-04-16 |
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