CN1252056C - N-〔1(s)-乙氧羰基-3-苯丙基〕-l-丙氨酸-n-羧酸酐的化学合成方法 - Google Patents
N-〔1(s)-乙氧羰基-3-苯丙基〕-l-丙氨酸-n-羧酸酐的化学合成方法 Download PDFInfo
- Publication number
- CN1252056C CN1252056C CN 200310108227 CN200310108227A CN1252056C CN 1252056 C CN1252056 C CN 1252056C CN 200310108227 CN200310108227 CN 200310108227 CN 200310108227 A CN200310108227 A CN 200310108227A CN 1252056 C CN1252056 C CN 1252056C
- Authority
- CN
- China
- Prior art keywords
- ethoxycarbonyl
- alanine
- phenylpropyl
- carboxylic acid
- acid anhydride
- 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 - Lifetime
Links
- 238000003786 synthesis reaction Methods 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000003960 organic solvent Substances 0.000 claims abstract description 26
- 238000006243 chemical reaction Methods 0.000 claims abstract description 24
- 239000002994 raw material Substances 0.000 claims abstract description 7
- CEIWXEQZZZHLDM-AAEUAGOBSA-N (2s)-2-[[(2s)-1-ethoxy-1-oxo-4-phenylbutan-2-yl]amino]propanoic acid Chemical compound CCOC(=O)[C@@H](N[C@@H](C)C(O)=O)CCC1=CC=CC=C1 CEIWXEQZZZHLDM-AAEUAGOBSA-N 0.000 claims abstract 8
- 239000003054 catalyst Substances 0.000 claims abstract 7
- LAYPMCGIWDGYKX-UHFFFAOYSA-N trichloromethyl hydrogen carbonate Chemical class OC(=O)OC(Cl)(Cl)Cl LAYPMCGIWDGYKX-UHFFFAOYSA-N 0.000 claims abstract 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 32
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 27
- 239000000203 mixture Substances 0.000 claims description 24
- -1 urea compound Chemical class 0.000 claims description 22
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 20
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 16
- 230000035484 reaction time Effects 0.000 claims description 15
- 125000004432 carbon atom Chemical group C* 0.000 claims description 14
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 13
- 239000003795 chemical substances by application Substances 0.000 claims description 10
- 239000002904 solvent Substances 0.000 claims description 9
- WSLDOOZREJYCGB-UHFFFAOYSA-N 1,2-Dichloroethane Chemical compound ClCCCl WSLDOOZREJYCGB-UHFFFAOYSA-N 0.000 claims description 7
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 6
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 claims description 5
- UCPYLLCMEDAXFR-UHFFFAOYSA-N triphosgene Chemical compound ClC(Cl)(Cl)OC(=O)OC(Cl)(Cl)Cl UCPYLLCMEDAXFR-UHFFFAOYSA-N 0.000 claims description 5
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 4
- 125000000217 alkyl group Chemical group 0.000 claims description 4
- FKRCODPIKNYEAC-UHFFFAOYSA-N ethyl propionate Chemical compound CCOC(=O)CC FKRCODPIKNYEAC-UHFFFAOYSA-N 0.000 claims description 4
- MLFHJEHSLIIPHL-UHFFFAOYSA-N isoamyl acetate Chemical compound CC(C)CCOC(C)=O MLFHJEHSLIIPHL-UHFFFAOYSA-N 0.000 claims description 4
- YKYONYBAUNKHLG-UHFFFAOYSA-N n-Propyl acetate Natural products CCCOC(C)=O YKYONYBAUNKHLG-UHFFFAOYSA-N 0.000 claims description 4
- 229940090181 propyl acetate Drugs 0.000 claims description 4
- NQPDZGIKBAWPEJ-UHFFFAOYSA-N valeric acid Chemical compound CCCCC(O)=O NQPDZGIKBAWPEJ-UHFFFAOYSA-N 0.000 claims description 4
- PGMYKACGEOXYJE-UHFFFAOYSA-N anhydrous amyl acetate Natural products CCCCCOC(C)=O PGMYKACGEOXYJE-UHFFFAOYSA-N 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 claims description 3
- UOCLXMDMGBRAIB-UHFFFAOYSA-N 1,1,1-trichloroethane Chemical compound CC(Cl)(Cl)Cl UOCLXMDMGBRAIB-UHFFFAOYSA-N 0.000 claims description 2
- SCYULBFZEHDVBN-UHFFFAOYSA-N 1,1-Dichloroethane Chemical compound CC(Cl)Cl SCYULBFZEHDVBN-UHFFFAOYSA-N 0.000 claims description 2
- DURPTKYDGMDSBL-UHFFFAOYSA-N 1-butoxybutane Chemical compound CCCCOCCCC DURPTKYDGMDSBL-UHFFFAOYSA-N 0.000 claims description 2
- HFZLSTDPRQSZCQ-UHFFFAOYSA-N 1-pyrrolidin-3-ylpyrrolidine Chemical compound C1CCCN1C1CNCC1 HFZLSTDPRQSZCQ-UHFFFAOYSA-N 0.000 claims description 2
- UHOPWFKONJYLCF-UHFFFAOYSA-N 2-(2-sulfanylethyl)isoindole-1,3-dione Chemical compound C1=CC=C2C(=O)N(CCS)C(=O)C2=C1 UHOPWFKONJYLCF-UHFFFAOYSA-N 0.000 claims description 2
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 claims description 2
- ZAFNJMIOTHYJRJ-UHFFFAOYSA-N Diisopropyl ether Chemical compound CC(C)OC(C)C ZAFNJMIOTHYJRJ-UHFFFAOYSA-N 0.000 claims description 2
- RJUFJBKOKNCXHH-UHFFFAOYSA-N Methyl propionate Chemical compound CCC(=O)OC RJUFJBKOKNCXHH-UHFFFAOYSA-N 0.000 claims description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 claims description 2
- KXKVLQRXCPHEJC-UHFFFAOYSA-N acetic acid trimethyl ester Natural products COC(C)=O KXKVLQRXCPHEJC-UHFFFAOYSA-N 0.000 claims description 2
- 229940043232 butyl acetate Drugs 0.000 claims description 2
- POLCUAVZOMRGSN-UHFFFAOYSA-N dipropyl ether Chemical compound CCCOCCC POLCUAVZOMRGSN-UHFFFAOYSA-N 0.000 claims description 2
- 229940093499 ethyl acetate Drugs 0.000 claims description 2
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 claims description 2
- GJRQTCIYDGXPES-UHFFFAOYSA-N iso-butyl acetate Natural products CC(C)COC(C)=O GJRQTCIYDGXPES-UHFFFAOYSA-N 0.000 claims description 2
- 229940117955 isoamyl acetate Drugs 0.000 claims description 2
- FGKJLKRYENPLQH-UHFFFAOYSA-M isocaproate Chemical compound CC(C)CCC([O-])=O FGKJLKRYENPLQH-UHFFFAOYSA-M 0.000 claims description 2
- JMMWKPVZQRWMSS-UHFFFAOYSA-N isopropanol acetate Natural products CC(C)OC(C)=O JMMWKPVZQRWMSS-UHFFFAOYSA-N 0.000 claims description 2
- 229940011051 isopropyl acetate Drugs 0.000 claims description 2
- GWYFCOCPABKNJV-UHFFFAOYSA-N isovaleric acid Chemical compound CC(C)CC(O)=O GWYFCOCPABKNJV-UHFFFAOYSA-N 0.000 claims description 2
- OQAGVSWESNCJJT-UHFFFAOYSA-N isovaleric acid methyl ester Natural products COC(=O)CC(C)C OQAGVSWESNCJJT-UHFFFAOYSA-N 0.000 claims description 2
- 229940017219 methyl propionate Drugs 0.000 claims description 2
- TWSRVQVEYJNFKQ-UHFFFAOYSA-N pentyl propanoate Chemical compound CCCCCOC(=O)CC TWSRVQVEYJNFKQ-UHFFFAOYSA-N 0.000 claims description 2
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 claims 4
- UBOXGVDOUJQMTN-UHFFFAOYSA-N 1,1,2-trichloroethane Chemical compound ClCC(Cl)Cl UBOXGVDOUJQMTN-UHFFFAOYSA-N 0.000 claims 2
- 235000021050 feed intake Nutrition 0.000 claims 2
- FDPIMTJIUBPUKL-UHFFFAOYSA-N pentan-3-one Chemical compound CCC(=O)CC FDPIMTJIUBPUKL-UHFFFAOYSA-N 0.000 claims 2
- KAESVJOAVNADME-UHFFFAOYSA-N 1H-pyrrole Natural products C=1C=CNC=1 KAESVJOAVNADME-UHFFFAOYSA-N 0.000 claims 1
- 229940072049 amyl acetate Drugs 0.000 claims 1
- 239000004202 carbamide Substances 0.000 claims 1
- MNWFXJYAOYHMED-UHFFFAOYSA-M heptanoate Chemical compound CCCCCCC([O-])=O MNWFXJYAOYHMED-UHFFFAOYSA-M 0.000 claims 1
- 229930195733 hydrocarbon Natural products 0.000 claims 1
- 150000002430 hydrocarbons Chemical class 0.000 claims 1
- 238000002360 preparation method Methods 0.000 abstract description 32
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 108010061435 Enalapril Proteins 0.000 abstract description 2
- 108010007859 Lisinopril Proteins 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 239000003814 drug Substances 0.000 abstract description 2
- 229960000873 enalapril Drugs 0.000 abstract description 2
- GBXSMTUPTTWBMN-XIRDDKMYSA-N enalapril Chemical compound C([C@@H](C(=O)OCC)N[C@@H](C)C(=O)N1[C@@H](CCC1)C(O)=O)CC1=CC=CC=C1 GBXSMTUPTTWBMN-XIRDDKMYSA-N 0.000 abstract description 2
- 229960002394 lisinopril Drugs 0.000 abstract description 2
- RLAWWYSOJDYHDC-BZSNNMDCSA-N lisinopril Chemical compound C([C@H](N[C@@H](CCCCN)C(=O)N1[C@@H](CCC1)C(O)=O)C(O)=O)CC1=CC=CC=C1 RLAWWYSOJDYHDC-BZSNNMDCSA-N 0.000 abstract description 2
- 229960003401 ramipril Drugs 0.000 abstract description 2
- HDACQVRGBOVJII-JBDAPHQKSA-N ramipril Chemical compound C([C@@H](C(=O)OCC)N[C@@H](C)C(=O)N1[C@@H](C[C@@H]2CCC[C@@H]21)C(O)=O)CC1=CC=CC=C1 HDACQVRGBOVJII-JBDAPHQKSA-N 0.000 abstract description 2
- 229940079593 drug Drugs 0.000 abstract 1
- 239000012450 pharmaceutical intermediate Substances 0.000 abstract 1
- 238000004128 high performance liquid chromatography Methods 0.000 description 32
- 125000003866 trichloromethyl group Chemical group ClC(Cl)(Cl)* 0.000 description 27
- 150000002170 ethers Chemical class 0.000 description 19
- 238000005303 weighing Methods 0.000 description 18
- 238000002425 crystallisation Methods 0.000 description 13
- 230000008025 crystallization Effects 0.000 description 13
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 description 11
- SNDGLCYYBKJSOT-UHFFFAOYSA-N 1,1,3,3-tetrabutylurea Chemical group CCCCN(CCCC)C(=O)N(CCCC)CCCC SNDGLCYYBKJSOT-UHFFFAOYSA-N 0.000 description 7
- OXHNLMTVIGZXSG-UHFFFAOYSA-N 1-Methylpyrrole Chemical compound CN1C=CC=C1 OXHNLMTVIGZXSG-UHFFFAOYSA-N 0.000 description 6
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 6
- MFGOZCIHXVFZBC-UHFFFAOYSA-N 1-propylpyrrole Chemical compound CCCN1C=CC=C1 MFGOZCIHXVFZBC-UHFFFAOYSA-N 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 4
- UWHSPZZUAYSGTB-UHFFFAOYSA-N 1,1,3,3-tetraethylurea Chemical compound CCN(CC)C(=O)N(CC)CC UWHSPZZUAYSGTB-UHFFFAOYSA-N 0.000 description 3
- AVQQQNCBBIEMEU-UHFFFAOYSA-N 1,1,3,3-tetramethylurea Chemical compound CN(C)C(=O)N(C)C AVQQQNCBBIEMEU-UHFFFAOYSA-N 0.000 description 3
- JZFDVPLHSQESAW-UHFFFAOYSA-N 1,1,3,3-tetrapropylurea Chemical compound CCCN(CCC)C(=O)N(CCC)CCC JZFDVPLHSQESAW-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 3
- 125000001972 isopentyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])C([H])([H])* 0.000 description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 3
- 125000000740 n-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 3
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 3
- 150000003254 radicals Chemical class 0.000 description 3
- 238000010792 warming Methods 0.000 description 3
- IIYSNNBEZBAQCQ-UHFFFAOYSA-N 1-butylpyrrole Chemical class CCCCN1C=CC=C1 IIYSNNBEZBAQCQ-UHFFFAOYSA-N 0.000 description 2
- YGYAWVDWMABLBF-UHFFFAOYSA-N Phosgene Chemical compound ClC(Cl)=O YGYAWVDWMABLBF-UHFFFAOYSA-N 0.000 description 2
- 229960001701 chloroform Drugs 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- YEJCDKJIEMIWRQ-UHFFFAOYSA-N Linopirdine Chemical compound O=C1N(C=2C=CC=CC=2)C2=CC=CC=C2C1(CC=1C=CN=CC=1)CC1=CC=NC=C1 YEJCDKJIEMIWRQ-UHFFFAOYSA-N 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 150000003851 azoles Chemical class 0.000 description 1
- HCUYBXPSSCRKRF-UHFFFAOYSA-N diphosgene Chemical compound ClC(=O)OC(Cl)(Cl)Cl HCUYBXPSSCRKRF-UHFFFAOYSA-N 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 150000005826 halohydrocarbons Chemical class 0.000 description 1
- YAMHXTCMCPHKLN-UHFFFAOYSA-N imidazolidin-2-one Chemical compound O=C1NCCN1 YAMHXTCMCPHKLN-UHFFFAOYSA-N 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- MONRWRVYLOHUFA-UHFFFAOYSA-N pentylurea Chemical compound CCCCCNC(N)=O MONRWRVYLOHUFA-UHFFFAOYSA-N 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000010189 synthetic method Methods 0.000 description 1
- 150000003672 ureas Chemical class 0.000 description 1
- 238000005292 vacuum distillation Methods 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 200310108227 CN1252056C (zh) | 2003-10-28 | 2003-10-28 | N-〔1(s)-乙氧羰基-3-苯丙基〕-l-丙氨酸-n-羧酸酐的化学合成方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 200310108227 CN1252056C (zh) | 2003-10-28 | 2003-10-28 | N-〔1(s)-乙氧羰基-3-苯丙基〕-l-丙氨酸-n-羧酸酐的化学合成方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1611494A CN1611494A (zh) | 2005-05-04 |
CN1252056C true CN1252056C (zh) | 2006-04-19 |
Family
ID=34758520
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 200310108227 Expired - Lifetime CN1252056C (zh) | 2003-10-28 | 2003-10-28 | N-〔1(s)-乙氧羰基-3-苯丙基〕-l-丙氨酸-n-羧酸酐的化学合成方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN1252056C (zh) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102659709A (zh) * | 2012-04-25 | 2012-09-12 | 上海交通大学 | 一种光敏性α-氨基酸-N-羧酸酐及其合成方法 |
CN105294827A (zh) * | 2014-07-21 | 2016-02-03 | 常州制药厂有限公司 | 一种马来酸依那普利的制备方法 |
CN109021064B (zh) * | 2017-06-09 | 2021-11-09 | 扬子江药业集团有限公司 | 一种马来酸依那普利的制备方法 |
-
2003
- 2003-10-28 CN CN 200310108227 patent/CN1252056C/zh not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CN1611494A (zh) | 2005-05-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN1070846C (zh) | 邻氨基甲酰基-(d)-苯基丙氨醇化合物及其制备方法 | |
CN1071741C (zh) | 在苯环上有取代基的o-氨基甲酰基-苯丙氨醇,它的药用盐及其制备方法 | |
CN1106396A (zh) | 用于制备具有抗糖尿病和抗肥胖症性能的芳香氨基醇衍生物的中间化合物 | |
CN1270166A (zh) | 三环取代异羟肟酸衍生物 | |
CN1132829C (zh) | N-乙酰基神经氨酸衍生物结晶及其制备方法 | |
CN1047866A (zh) | N-杂芳基-嘌呤-6-胺的制备方法及其药用 | |
CN1874998A (zh) | 1-苄基-4-[(5,6-二甲氧基-1-二氢茚酮)-2-基]甲基哌啶草酸盐(多奈哌齐草酸盐)及其多晶型物 | |
CN1064964C (zh) | 新型苯并二噁烷,它们的制备方法以及含这些化合物的药物组合物 | |
CN1252056C (zh) | N-〔1(s)-乙氧羰基-3-苯丙基〕-l-丙氨酸-n-羧酸酐的化学合成方法 | |
CN1134700A (zh) | 新型紫杉化合物、其制备方法及其药物组合物 | |
CN1114592C (zh) | 奥沙奈丹的晶型 | |
CN1020726C (zh) | 环状含硫化合物的制备方法 | |
CN1042935C (zh) | 2-氰基-3-羟基丙烯酰胺类化合物及其制法、用途和药物组合物 | |
CN1159316C (zh) | 异吲哚并吲哚酮化合物、它们的制备方法和含有它们的药物组合物 | |
CN100340557C (zh) | 具有神经镇静活性的齐拉西酮的酰基衍生物 | |
CN1224626C (zh) | β-D-5-硫代木糖衍生物、其制备方法及医疗用途 | |
CN1037179C (zh) | 1,4-苯并噁嗪衍生物 | |
CN1803758A (zh) | 对硝基氯甲酸苄酯的合成方法 | |
CN1027260C (zh) | 在无水介质中制备酰基氰的方法 | |
CN1308300C (zh) | 2-氰甲基硫基乙酰氯的化学合成方法 | |
CN1030077A (zh) | 法莫丁啶多晶型物及其制备方法 | |
CN1944410A (zh) | 一种n-氯甲酰基亚胺基二苄的化学合成方法 | |
CN1120152C (zh) | 一种β—卤代γ—羟基吡咯酮及其合成方法 | |
CN1077890C (zh) | 作为多巴胺d2激动剂的4-氨基乙氧基-吲哚衍生物 | |
CN101037425A (zh) | 2-呋喃甲酰基-3-芳基-4-乙氧基甲酰基-5-甲基-反式-2,3-二氢呋喃及其制备方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
EE01 | Entry into force of recordation of patent licensing contract |
Assignee: ZHEJIANG CHANGMING PHARMACEUTICAL Co.,Ltd. Assignor: Zhejiang University of Technology Contract fulfillment period: 2007.4.18 to 2012.12.31 Contract record no.: 2008330001345 Denomination of invention: Chemical synthesis of N [1 (S) - oxo - 3 - propyl] L alanine N carboxylic acid anhydride Granted publication date: 20060419 License type: Exclusive license Record date: 20081024 |
|
LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2007.4.18 TO 2012.12.31; CHANGE OF CONTRACT Name of requester: ZHEJIANG PROVINCE CHANGMING PHARMACEUTICAL CO., LT Effective date: 20081024 |
|
CX01 | Expiry of patent term | ||
CX01 | Expiry of patent term |
Granted publication date: 20060419 |