Tricyclic compounds

摘要

A tricyclic compound represented by the following formula (I): <IMAGE> (I) wherein R1 represents hydrogen, halogen or lower alkyl; A represents cyano, carboxyl, tetrazolyl, cyano-substituted phenyl, carboxyl-substituted phenyl or tetrazolyl-substituted phenyl; V represents -(CH2)m- wherein m is an integer of 0 to 2; W represents <IMAGE> and Q1-Q2-Q3-Q4 represents N=CH-CH=CH, CH=CH-CH=CH or CH2-CH2-CH2-CH2, <IMAGE> <IMAGE> <IMAGE> and Q represents N or CH; X1-X2-X3 represents CH=CH-CH=CH, S-CH=CH or CH=CH-S; Y represents CH2CH2; and Z1-Z2 represents N-(CH2)n- wherein n is an integer of 1 to 3 or a pharmaceutically acceptable salt thereof.