DE2032952C3 - Verfahren zur Herstellung von D,L-Penicillamin - Google Patents
Verfahren zur Herstellung von D,L-PenicillaminInfo
- Publication number
- DE2032952C3 DE2032952C3 DE2032952A DE2032952A DE2032952C3 DE 2032952 C3 DE2032952 C3 DE 2032952C3 DE 2032952 A DE2032952 A DE 2032952A DE 2032952 A DE2032952 A DE 2032952A DE 2032952 C3 DE2032952 C3 DE 2032952C3
- Authority
- DE
- Germany
- Prior art keywords
- isopropyl
- dimethyl
- thiazolidine
- carboxylic acid
- hydrochloride
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
Links
- 238000000034 method Methods 0.000 title claims description 15
- VVNCNSJFMMFHPL-UHFFFAOYSA-N penicillamine Chemical compound CC(C)(S)C(N)C(O)=O VVNCNSJFMMFHPL-UHFFFAOYSA-N 0.000 title claims description 3
- 238000002360 preparation method Methods 0.000 title description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 65
- 239000000203 mixture Substances 0.000 claims description 30
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims description 22
- 150000002825 nitriles Chemical class 0.000 claims description 20
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 16
- AMIMRNSIRUDHCM-UHFFFAOYSA-N Isopropylaldehyde Chemical compound CC(C)C=O AMIMRNSIRUDHCM-UHFFFAOYSA-N 0.000 claims description 16
- LELOWRISYMNNSU-UHFFFAOYSA-N hydrogen cyanide Chemical compound N#C LELOWRISYMNNSU-UHFFFAOYSA-N 0.000 claims description 15
- XRKZVUKVOZHPEQ-UHFFFAOYSA-N 5,5-dimethyl-2-propan-2-yl-1,3-thiazolidine-4-carbonitrile Chemical compound CC(C)C1NC(C#N)C(C)(C)S1 XRKZVUKVOZHPEQ-UHFFFAOYSA-N 0.000 claims description 11
- 235000019270 ammonium chloride Nutrition 0.000 claims description 11
- CJCQTPCVKRWSLM-UHFFFAOYSA-N 5,5-dimethyl-2-propan-2-yl-1,3-thiazolidine-4-carboxylic acid;hydrochloride Chemical compound Cl.CC(C)C1NC(C(O)=O)C(C)(C)S1 CJCQTPCVKRWSLM-UHFFFAOYSA-N 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 230000007062 hydrolysis Effects 0.000 claims description 10
- 238000006460 hydrolysis reaction Methods 0.000 claims description 10
- 229910021529 ammonia Inorganic materials 0.000 claims description 8
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 7
- 229910052717 sulfur Inorganic materials 0.000 claims description 7
- 239000011593 sulfur Substances 0.000 claims description 7
- CBDKQYKMCICBOF-UHFFFAOYSA-N thiazoline Chemical compound C1CN=CS1 CBDKQYKMCICBOF-UHFFFAOYSA-N 0.000 claims description 6
- JLLDUMMFTKVTLS-UHFFFAOYSA-N 5,5-dimethyl-2-propan-2-yl-1,3-thiazolidine-4-carboxylic acid Chemical compound CC(C)C1NC(C(O)=O)C(C)(C)S1 JLLDUMMFTKVTLS-UHFFFAOYSA-N 0.000 claims description 4
- 230000015556 catabolic process Effects 0.000 claims description 4
- 238000006731 degradation reaction Methods 0.000 claims description 4
- 230000003301 hydrolyzing effect Effects 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 238000010626 work up procedure Methods 0.000 claims description 2
- SZLVYXIKAAFTFY-UHFFFAOYSA-N 2-ethyl-1,3-thiazolidine Chemical compound CCC1NCCS1 SZLVYXIKAAFTFY-UHFFFAOYSA-N 0.000 claims 1
- 125000004093 cyano group Chemical group *C#N 0.000 claims 1
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 15
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 14
- 238000009835 boiling Methods 0.000 description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 12
- -1 heterocyclic amines Chemical class 0.000 description 12
- 238000001816 cooling Methods 0.000 description 9
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 9
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 9
- 229960001639 penicillamine Drugs 0.000 description 8
- 239000011541 reaction mixture Substances 0.000 description 8
- 125000005521 carbonamide group Chemical group 0.000 description 7
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 7
- LJRDOKAZOAKLDU-UDXJMMFXSA-N (2s,3s,4r,5r,6r)-5-amino-2-(aminomethyl)-6-[(2r,3s,4r,5s)-5-[(1r,2r,3s,5r,6s)-3,5-diamino-2-[(2s,3r,4r,5s,6r)-3-amino-4,5-dihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-6-hydroxycyclohexyl]oxy-4-hydroxy-2-(hydroxymethyl)oxolan-3-yl]oxyoxane-3,4-diol;sulfuric ac Chemical compound OS(O)(=O)=O.N[C@@H]1[C@@H](O)[C@H](O)[C@H](CN)O[C@@H]1O[C@H]1[C@@H](O)[C@H](O[C@H]2[C@@H]([C@@H](N)C[C@@H](N)[C@@H]2O)O[C@@H]2[C@@H]([C@@H](O)[C@H](O)[C@@H](CO)O2)N)O[C@@H]1CO LJRDOKAZOAKLDU-UDXJMMFXSA-N 0.000 description 6
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 6
- 229910052757 nitrogen Inorganic materials 0.000 description 6
- 238000010992 reflux Methods 0.000 description 6
- 239000002904 solvent Substances 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 238000004821 distillation Methods 0.000 description 4
- 238000001256 steam distillation Methods 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- VVNCNSJFMMFHPL-GSVOUGTGSA-N L-penicillamine Chemical compound CC(C)(S)[C@H](N)C(O)=O VVNCNSJFMMFHPL-GSVOUGTGSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 150000001299 aldehydes Chemical class 0.000 description 3
- 150000001412 amines Chemical class 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 239000000706 filtrate Substances 0.000 description 3
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000006386 neutralization reaction Methods 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- FHKABCWCYPPSMO-UHFFFAOYSA-N 5,5-dimethyl-2-propan-2-yl-1,3-thiazolidine-4-carboxamide;hydrochloride Chemical compound Cl.CC(C)C1NC(C(N)=O)C(C)(C)S1 FHKABCWCYPPSMO-UHFFFAOYSA-N 0.000 description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 230000007717 exclusion Effects 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- PRSDPVKGJUBIAA-UHFFFAOYSA-N 1,3-thiazolidine-4-carbonitrile Chemical compound N#CC1CSCN1 PRSDPVKGJUBIAA-UHFFFAOYSA-N 0.000 description 1
- OBSLLHNATPQFMJ-UHFFFAOYSA-N 2,4-Dimethylthiazole Chemical compound CC1=CSC(C)=N1 OBSLLHNATPQFMJ-UHFFFAOYSA-N 0.000 description 1
- CZDHUFYOXKHLME-UHFFFAOYSA-N 2-amino-3-methyl-3-sulfanylbutanoic acid;hydron;chloride Chemical compound Cl.CC(C)(S)C(N)C(O)=O CZDHUFYOXKHLME-UHFFFAOYSA-N 0.000 description 1
- RSZVGLFPGDKTDK-UHFFFAOYSA-N 2-ethyl-1,3-thiazolidin-3-ium-4-carboxylate Chemical compound CCC1NC(C(O)=O)CS1 RSZVGLFPGDKTDK-UHFFFAOYSA-N 0.000 description 1
- UEHKBJZDQOQOLX-UHFFFAOYSA-N 5,5-dimethyl-2-propan-2-yl-1,3-thiazolidine Chemical compound CC(C)C1NCC(C)(C)S1 UEHKBJZDQOQOLX-UHFFFAOYSA-N 0.000 description 1
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- FDEQQCOTLPPCAO-UHFFFAOYSA-N Cl.OC(O)=O Chemical compound Cl.OC(O)=O FDEQQCOTLPPCAO-UHFFFAOYSA-N 0.000 description 1
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 1
- 206010011778 Cystinuria Diseases 0.000 description 1
- 208000002972 Hepatolenticular Degeneration Diseases 0.000 description 1
- 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 1
- 238000005684 Liebig rearrangement reaction Methods 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 208000018839 Wilson disease Diseases 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 1
- KHPLPBHMTCTCHA-UHFFFAOYSA-N ammonium chlorate Chemical compound N.OCl(=O)=O KHPLPBHMTCTCHA-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical class OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 150000008280 chlorinated hydrocarbons Chemical class 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- FOBPTJZYDGNHLR-UHFFFAOYSA-N diphosphorus Chemical compound P#P FOBPTJZYDGNHLR-UHFFFAOYSA-N 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000006052 feed supplement Substances 0.000 description 1
- 229940083124 ganglion-blocking antiadrenergic secondary and tertiary amines Drugs 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- PNDPGZBMCMUPRI-UHFFFAOYSA-N iodine Chemical compound II PNDPGZBMCMUPRI-UHFFFAOYSA-N 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 229920001021 polysulfide Polymers 0.000 description 1
- 239000005077 polysulfide Substances 0.000 description 1
- 150000008117 polysulfides Polymers 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000001226 reprecipitation Methods 0.000 description 1
- 238000003385 ring cleavage reaction Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 238000004809 thin layer chromatography Methods 0.000 description 1
- DZLNHFMRPBPULJ-UHFFFAOYSA-N thioproline Chemical compound OC(=O)C1CSCN1 DZLNHFMRPBPULJ-UHFFFAOYSA-N 0.000 description 1
- 125000005270 trialkylamine group Chemical group 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D277/00—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings
- C07D277/02—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings
- C07D277/04—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings having no double bonds between ring members or between ring members and non-ring members
- C07D277/06—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings having no double bonds between ring members or between ring members and non-ring members 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Thiazole And Isothizaole Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Priority Applications (26)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2032952A DE2032952C3 (de) | 1970-07-03 | 1970-07-03 | Verfahren zur Herstellung von D,L-Penicillamin |
| ES71391971A ES391971A1 (es) | 1970-07-03 | 1971-06-05 | Procedimiento para la preparacion de penicilamina y sus ho-mologos. |
| DK288571A DK145180C (da) | 1970-07-03 | 1971-06-14 | Fremgangsmaade til fremstilling af penicillamin eller dens homologe eller hydrochlorider deraf |
| NLAANVRAGE7108503,A NL171891C (nl) | 1970-07-03 | 1971-06-21 | Werkwijze voor het bereiden van d,l-penicillamine en aminezouten hiervan. |
| NO2366/71A NO136752C (no) | 1970-07-03 | 1971-06-22 | Fremgangsm}te til fremstilling av penicillamin |
| GB2963571A GB1346198A (en) | 1970-07-03 | 1971-06-24 | Production of penicillamine and its homologues |
| RO67459A RO59924A (enExample) | 1970-07-03 | 1971-06-25 | |
| EG271/71A EG10524A (en) | 1970-07-03 | 1971-06-26 | Process for preparation of penicillamin |
| IL37171A IL37171A (en) | 1970-07-03 | 1971-06-28 | The preparation of penicillamine |
| IE829/71A IE35409B1 (en) | 1970-07-03 | 1971-06-29 | Production of penicillamine and its homologues |
| BE769390A BE769390A (fr) | 1970-07-03 | 1971-07-01 | Procede de preparation de penicillamine |
| YU01739/71A YU39160B (en) | 1970-07-03 | 1971-07-01 | Process for producing penicillamines |
| ZA714357A ZA714357B (en) | 1970-07-03 | 1971-07-02 | Process for the preparation of penicillamine |
| SU1677804A SU508207A3 (ru) | 1970-07-03 | 1971-07-02 | Способ получени пеницилламина |
| CS714898A CS191251B2 (en) | 1970-07-03 | 1971-07-02 | Process for preparing penicilamine |
| IT51366/71A IT1035036B (it) | 1970-07-03 | 1971-07-02 | Procedimento per la produzione di penicilammina |
| AT576871A AT313864B (de) | 1970-07-03 | 1971-07-02 | Verfahren zur Herstellung von Penicillamin und seinen Homologen |
| CH979471A CH575388A5 (enExample) | 1970-07-03 | 1971-07-02 | |
| AT819973*1A AT322523B (de) | 1970-07-03 | 1971-07-02 | Verfahren zur herstellung von penicillamin und seinen homologen |
| SE7108614A SE395001B (sv) | 1970-07-03 | 1971-07-02 | Forfarande for framstellning av penicillamin och dess homologer, utgaende fran tiazolidin - 4 - karbonitriler |
| JP4917971A JPS544936B1 (enExample) | 1970-07-03 | 1971-07-03 | |
| CA117,354A CA949977A (en) | 1970-07-03 | 1971-07-05 | Process for the production of penicillamine |
| FR7124505A FR2100257A5 (enExample) | 1970-07-03 | 1971-07-05 | |
| AT966672A AT319195B (de) | 1970-07-03 | 1972-11-14 | Verfahren zur Herstellung von Penicillamin |
| US05/598,995 US4045479A (en) | 1970-07-03 | 1975-07-25 | Process of preparing penicillamine |
| US05/657,835 US4028406A (en) | 1970-07-03 | 1976-02-13 | Process of preparing penicillamine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2032952A DE2032952C3 (de) | 1970-07-03 | 1970-07-03 | Verfahren zur Herstellung von D,L-Penicillamin |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE2032952A1 DE2032952A1 (en) | 1972-03-30 |
| DE2032952B2 DE2032952B2 (de) | 1977-08-25 |
| DE2032952C3 true DE2032952C3 (de) | 1978-04-27 |
Family
ID=5775680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2032952A Expired DE2032952C3 (de) | 1970-07-03 | 1970-07-03 | Verfahren zur Herstellung von D,L-Penicillamin |
Country Status (6)
| Country | Link |
|---|---|
| CS (1) | CS191251B2 (enExample) |
| DE (1) | DE2032952C3 (enExample) |
| EG (1) | EG10524A (enExample) |
| NO (1) | NO136752C (enExample) |
| YU (1) | YU39160B (enExample) |
| ZA (1) | ZA714357B (enExample) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2645748C2 (de) * | 1976-10-09 | 1985-09-12 | Degussa Ag, 6000 Frankfurt | Verfahren zur Herstellung von D,L-Cystein |
-
1970
- 1970-07-03 DE DE2032952A patent/DE2032952C3/de not_active Expired
-
1971
- 1971-06-22 NO NO2366/71A patent/NO136752C/no unknown
- 1971-06-26 EG EG271/71A patent/EG10524A/xx active
- 1971-07-01 YU YU01739/71A patent/YU39160B/xx unknown
- 1971-07-02 ZA ZA714357A patent/ZA714357B/xx unknown
- 1971-07-02 CS CS714898A patent/CS191251B2/cs unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE2032952A1 (en) | 1972-03-30 |
| NO136752C (no) | 1977-11-02 |
| NO136752B (enExample) | 1977-07-25 |
| ZA714357B (en) | 1972-03-29 |
| YU39160B (en) | 1984-08-31 |
| DE2032952B2 (de) | 1977-08-25 |
| EG10524A (en) | 1976-05-31 |
| CS191251B2 (en) | 1979-06-29 |
| YU173971A (en) | 1982-02-28 |
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