| 摘要 |
Compounds having the formula <IMAGE> and <IMAGE> wherein: R1 is hydrogen, alkyl, aryl or arylalkyl; R2 is hydrogen and R3 is hydrogen, hydroxy, alkoxy or halogen, or together R2 and R3 can be =Q or -X-(CH2)t-X- wherein X is oxygen or sulfur and t is 2 or 3; R4 is hydrogen or alkyl; R5 is hydrogen, alkyl or trifluoromethyl; R6 is alkyl of 1 to 20 carbon atoms, aryl, arylalkyl or a 5- or 6-membered heterocyclic group having 1 to 2 nitrogen, sulfur or oxygen atoms in the ring; R7 is aryl; m is 0, 1 or 2; and n is 1 or 2 have useful hypotensive activity.
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