Bicyclic oxo-thiolactones, pharmaceutical compositions containing them, processes for their preparation and compounds useful as intermediates for their preparation
申请人:AMERICAN HOME PRODUCTS CORPORATION
公开号:EP0017390A2
公开(公告)日:1980-10-15
Disclosed herein are bicyclic oxo-thiolactones of the formula:
in which R, is hydrogen or lower alkyl; R2 and R3 are, independently, hydrogen, hydroxy, halogen, lower alkyl, lower alkoxy, or aryl; and R4, R5 and R6 are independently, hydrogen, lower alkyl, lower hydroxyalkyl, aryl or aryl-alkyl, except that R4 and R5 may not both be aryl
These compounds act as inhibitors or angiotension converting enzyme and are useful as agents for the treatment of hypertension in mammals. The compounds are stable against oxidation of the sulphur.
Also disclosed are methods of preparation of such compounds and novel intermediates having the formula
where Ra is hydrogen or an amino protecting group, Rb is hydrogen or a carboxylic acid protecting group, n is 1 or 0 and their salts.
此处公开的是式中的双环氧硫杂内酯:
其中 R 是氢或低级烷基;R2 和 R3 独立地是氢、羟基、卤素、低级烷基、低级烷氧基或芳基;R4、R5 和 R6 独立地是氢、低级烷基、低级羟基烷基、芳基或芳基烷基,但 R4 和 R5 不一定都是芳基。
这些化合物是血管紧张素转换酶的抑制剂,可作为治疗哺乳动物高血压的药物。这些化合物对硫的氧化很稳定。
还公开了制备此类化合物和新型中间体的方法,其式为
其中 Ra 为氢或氨基保护基团,Rb 为氢或羧酸保护基团,n 为 1 或 0 及其盐类。