PROCESS FOR THE PREPARATION OF ETHYL 3S-[[4-[[4-(AMINOIMINOMETHYL)PHENYL]AMINO]-1,4-DIOXOBUTYL]AMINO]-4-PENTYNOATE
    8.
    发明申请
    PROCESS FOR THE PREPARATION OF ETHYL 3S-[[4-[[4-(AMINOIMINOMETHYL)PHENYL]AMINO]-1,4-DIOXOBUTYL]AMINO]-4-PENTYNOATE 审中-公开
    乙基3S- [[4 - [[4-(氨基亚氨基)苯基]氨基] -1,4-二氧代丁基]氨基] -4-戊酸的制备方法

    公开(公告)号:WO1997003947A1

    公开(公告)日:1997-02-06

    申请号:PCT/US1996010658

    申请日:1996-07-12

    发明人: G.D. SEARLE & CO.

    IPC分类号: C07C249/12

    摘要: The present invention relates to a novel process for the preparation of ethyl 3S-[[4-[[4-(aminoiminomethyl)-phenyl]amino]-1,4-dioxobutyl]amino]-4-pentynoate and pharmaceutically acceptable acid addition salt thereof which comprises treating (trimethylsilyl)acetylene sequentially with n-butyllitium and 4-formylmorpholine followed by acid hydrolysis to give 3-(trimethylsilyl)-2-propynal; treating 3-(trimethylsilyl)-2-propynal with lithium bis(trimethylsilyl)amide to give in situ N,3-bis(trimethylsilyl)-2-propyn-1-imine; condensation of N,3-bis(trimethylsilyl)-2-propyn-1-imine with lithium t-butyl acetate to give (+/-)1,1-dimethylethyl 3-amino-5-(trimethylsilyl)-4-pentynoate; treating (+/-)1,1-dimethylethyl 3-amino-5-(trimethylsilyl)-4-pentynoate- with p-toluenesulfonic acid to give (+/-)1,1-dimethylethyl 3-amin-5-(trimethylsilyl)-4-pentynoate, mono p-toluenesulfonic acid salt, treatment of resulting salt with ethanol in the presence of p-toluenesulfonic acid to give (+/-)ethyl 3-amino-5-(trimethylsilyl)-4-pentynoate; desilylation of (+/-)ethyl 3-amino-5-(trimethylsilyl)-4-pentynoate to give in situ (+/-)ethyl 3-amino-4-pentynoate; resolution of (+/-)ethyl 3-amino-4-pentynoate using (R)-(-)-mandelic acid and treatment of the resolved product with gaseous hydrochloric acid to give ethyl 3S-amino-4-pentynoate, monohydrochloride; coupling the ethyl 3S-amino-4-pentynoate, monohydrochloride to 4-[[4-(aminoiminomethyl)phenyl]amino]-4-oxobutanoic acid, monohydrochloride in the presence of isobutyl chloroformate and N-methylmorpholine to give ethyl 3S-[[4-[[4-(aminoiminomehtyl)phenyl]amino]-1,4-dioxobutyl]amino]-4-pentynoate, monohydrochloride.

    摘要翻译: 本发明涉及制备3S - [[4 - [[4-(氨基亚氨基甲基) - 苯基]氨基] -1,4-二氧代丁基]氨基] -4-戊酸乙酯和药学上可接受的酸加成盐的新方法 其包括依次用正丁基鎓和4-甲酰基吗啉处理(三甲基甲硅烷基)乙炔,然后酸水解,得到3-(三甲基甲硅烷基)-2-丙炔醛; 用双(三甲基甲硅烷基)氨基锂处理3-(三甲基甲硅烷基)-2-丙炔醛,得到原位N,3-二(三甲基甲硅烷基)-2-丙炔-1-亚胺; N,3-二(三甲基甲硅烷基)-2-丙炔-1-亚胺与乙酸叔丁酯的缩合得到3-氨基-5-(三甲基甲硅烷基)-4-戊炔酸(+/-)1,1-二甲基乙酯; 用对甲苯磺酸处理(+/-)3-氨基-5-(三甲基甲硅烷基)-4-戊酸乙酯(+/-)1,1-二甲基乙基酯,得到3-氨基-5-(三甲基甲硅烷基 )-4-戊酸酯,单对甲苯磺酸盐,在对甲苯磺酸存在下用乙醇处理所得的盐,得到(+/-)3-氨基-5-(三甲基甲硅烷基)-4-戊酸乙酯; (+/-)乙基3-氨基-5-(三甲基甲硅烷基)-4-戊酸乙酯脱甲硅烷基,得到原位(+/-)3-氨基-4-戊酸乙酯; 使用(R) - ( - ) - 扁桃酸分解(+/-)乙基3-氨基-4-戊炔酸,并用气态盐酸处理分离产物,得到3S-氨基-4-戊酸乙酯,一盐酸盐; 将3S-氨基-4-戊酸乙酯,一盐酸盐在氯甲酸异丁酯和N-甲基吗啉存在下,将4 - [[4-(氨基亚氨基甲基)苯基]氨基] -4-氧代丁酸单盐酸盐偶合,得到3S- [ 4 - [[4-(氨基亚氨基甲基)苯基]氨基] -1,4-二氧代丁基]氨基] -4-戊酸乙酯,一盐酸盐。