Patent ID: 7323456

Claim:
A carboxylic acid derivative compound represented by formula (I) wherein X and Y are each independently C 1-4 alkylene, Z is —O— or —S—, R 1 , R 2 , R 3 and R 4 are each independently hydrogen atom, or C 1-8 alkyl, R 5 is C 2-8 alkenyl, A is —O— or —S—, D is R 6 is (1) hydrogen atom, (2) C 1-8 alkyl, (3) C 1-8 alkoxy, (4) CF 3 , (5) OCF 3 , (6) halogen atom, (7) nitro, or (8) NR 7 R 8 , R 7 or R 8 is hydrogen atom, or C 1-8 alkyl, or R 7 and R 8 , taken together with the nitrogen atom to which they are attached, form saturated 3-7 membered mono-hetero aryl containing one nitrogen atom and optionally another one hetero atom selected from oxygen, sulfur and nitrogen atom, and the saturated hetero aryl is optionally substituted with C 1-8 alkyl, E is CH or nitrogen atom, and m is integer of 1-3, or a nontoxic salt thereof.