C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
260/283, 260/287
C07D 215/42 (2006.01) C07D 311/68 (2006.01) C07D 317/70 (2006.01) C07D 339/04 (2006.01)
Patent
CA 1168233
ABSTRACT OF THE DISCLOSURE New bicyclic compounds of the formula: (I) Image wherein R1 and R2, which may be the same or different, each represents hydrogen, halogen, lower alkyl, hydroxyl, lower alkyloxy or aralkyloxy, or R and R2 jointly represent lower a!kylenedioxy; R3 and R4 each represents hydrogen or lower alkyl; R5 represents hydrogen, lower alkyl or -CH2SR7 (wherein R7 represents hydrogen or acyl); R represents hydrogen or acyl, or R6 and R7 jointly represent a single bond; X represents -CH2-, -O- or , ?NR8 wherein R8 represents hydrogen, acyl or lower alkyl); and n represents 2, 3 or 4, are disclosed, as well as salts thereof. The compounds (1) and their salts exhibit inhibitory activities of angiotensin converting enzyme and bradykinin decomposing enzyme, and are useful as antihypertensive agents.
372474
Miyake Akio
Nishikawa Kohei
Oka Yoshikazu
Fetherstonhaugh & Co.
Takeda Chemical Industries Ltd.
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