Studies on Nilvadipine. III. Syntheses of Metabolites of Nilvadipine and Their Related Compounds.
摘要:
尼伐地平(I)是 2-氰基-3-甲氧羰基-6-甲基-4-(3-硝基苯基)-1, 4-二氢吡啶-5-羧酸异丙酯,具有独特的 1, 4-二氢吡啶结构,其核的五个位置上的取代基彼此不同。在 I 的研发过程中,从大鼠和狗口服后的尿液和胆汁中分离出了一些代谢物。根据已知 1,4-二氢吡啶的代谢数据,我们提议合成一系列化合物(1-11),与从 I 中分离出的代谢物进行比较,以此作为确定结构的方法。事实上,在合成的化合物中,我们发现其中五个(3-7)与从大鼠和狗的尿液和胆汁中分离出来的代谢物相吻合。
Enzymatic synthesis of optically active 2-carbamoyl-oxymethyl-1,4-dihydropyridines, (R)-(+)- and (S)-(−)-NB 818
作者:Hirosato Ebiike、Kaori Maruyama、Kazuo Achiwa
DOI:10.1016/s0957-4166(00)82100-x
日期:1992.9
Racemic dihydropyridines were resolved by enzyme-catalyzedhydrolysis in an organic solvent saturated with water. The chiral derivatives obtained were converted to (S)- and (R)-NB 818.
Ameliorant of cerebral circulation and optical isomer of nb-818, processes for its production and its use
申请人:BANYU PHARMACEUTICAL CO., LTD.
公开号:EP0311053A2
公开(公告)日:1989-04-12
An ameliorant of cerebral circulation which contains 2-carbamoyloxymethyl-4-(2,3-dichlorophenyl)-6-methyl-1,4-dihydropyridine-3,5-dicarboxylic acid 3-isopropyl ester 5-methyl ester as an active ingredient.