Drug for inhibiting vascular intimal hyperplasia
First Claim
1. A vascular intimal hyperplasia inhibitor containing a 3(2H)-pyridazinone compound represented by the formula (I) or a pharmacologically acceptable salt th wherein each of R1, R2 and R3 is independently a hydrogen atom or a C1-6 alkyl group, X is a halogen atom, cyano or a hydrogen atom, Y is a halogen atom, trifluoromethyl or a hydrogen atom, and A is a C1-8 alkylene which may be substituted with a hydroxyl group.
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Abstract
An intimal hyperplasia inhibitor containing a 3(2H)-pyridazinone compound represented by the formula (I):
[wherein each of R1, R2 and R3 is independently a hydrogen atom or a C1-6 alkyl group, X is a halogen atom, cyano or a hydrogen atom, Y is a halogen atom, trifluoromethyl or a hydrogen atom, and A is a C1-8 alkylene which may be substituted with a hydroxyl group] or a pharmacologically acceptable salt thereof.
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9 Claims
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1. A vascular intimal hyperplasia inhibitor containing a 3(2H)-pyridazinone compound represented by the formula (I) or a pharmacologically acceptable salt th
wherein each of R1, R2 and R3 is independently a hydrogen atom or a C1-6 alkyl group, X is a halogen atom, cyano or a hydrogen atom, Y is a halogen atom, trifluoromethyl or a hydrogen atom, and A is a C1-8 alkylene which may be substituted with a hydroxyl group.
Specification