申请人:American Home Products Corporation
公开号:US04454291A1
公开(公告)日:1984-06-12
Disclosed herein are 2,3-dihydro-1H-indole-2-carboxylic acids substituted on the nitrogen with 3-mercapto-2-alkyl-1-oxoalkyl, 3-phosphoryl-2-alkyl-1-oxopropyl, or 2-amino-2-alkyl-1-oxoalkyl derivatives which act as inhibitors of angiotensin converting enzyme and as antihypertensive agents. The compounds of the invention (excluding disclosed intermediates) have the general formula: ##STR1## wherein: n is 1 or 0; R.sub.1 is hydrogen, lower alkyl, aryl or aralkyl; R.sub.2 is hydrogen or lower alkyl; R.sub.3 is hydrogen, lower alkyl or aroyl; R.sub.5 is hydroxy, amino, or lower alkoxy; X is hydrogen, hydroxy, lower alkyl, lower alkoxy, or halogen; Y is hydrogen, lower alkyl, or aryl; Y is hydrogen, lower alkyl, or aryl; R.sub.4 is ##STR2## wherein: L is O, NR.sub.7 or S (where R.sub.7 is hydrogen or lower alkyl); M is R.sub.8, OR.sub.8, SR.sub.8, or NR.sub.9 R.sub.10 (where R.sub.8 is hydrogen, lower alkyl, aryl, or aralkyl; and R.sub.9 and R.sub.10 are, independently, hydrogen, lower alkyl, or aryl); A is O, NR.sub.13 or S; R.sub.11 and R.sub.12 are, independently, hydrogen, alkyl, aralkylor aryl; R.sub.13 is hydrogen or lower alkyl; m is 0, 1, 2, or 3; R.sub.20 is hydrogen or aryl; and R.sub.21 is hydroxy or lower alkoxy; or pharmaceutically acceptable salts thereof. Claimed compounds are intermediates of the formula: ##STR3## wherein R.sub.13 is hydrogen or lower alkyl; R.sub.14 is R.sub.5 or OZ, where R.sub.5 is hydroxy, amino, or lower alkoxy, and Z is a carboxylic acid protecting group.
本文披露了在氮上以3-巯基-2-烷基-1-氧代烷基、3-磷酸基-2-烷基-1-氧代丙基或2-氨基-2-烷基-1-氧代烷基衍生物取代的2,3-二氢-1H-吲哚-2-羧酸,其作为血管紧张素转化酶抑制剂和降压剂。本发明化合物(不包括已披露的中间体)的一般式为:##STR1## 其中:n为1或0;R.sub.1为氢、低级烷基、芳基或芳基烷基;R.sub.2为氢或低级烷基;R.sub.3为氢、低级烷基或芳酰基;R.sub.5为羟基、氨基或低级烷氧基;X为氢、羟基、低级烷基、低级烷氧基或卤素;Y为氢、低级烷基或芳基;R.sub.4为##STR2## 其中:L为O、NR.sub.7或S(其中R.sub.7为氢或低级烷基);M为R.sub.8、OR.sub.8、SR.sub.8或NR.sub.9R.sub.10(其中R.sub.8为氢、低级烷基、芳基或芳基烷基;R.sub.9和R.sub.10独立地为氢、低级烷基或芳基);A为O、NR.sub.13或S;R.sub.11和R.sub.12独立地为氢、烷基、芳基烷基或芳基;R.sub.13为氢或低级烷基;m为0、1、2或3;R.sub.20为氢或芳基;R.sub.21为羟基或低级烷氧基;或其药学上可接受的盐。所述的化合物是以下中间体的中间体:##STR3## 其中R.sub.13为氢或低级烷基;R.sub.14为R.sub.5或OZ,其中R.sub.5为羟基、氨基或低级烷氧基,Z为羧酸保护基。