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Drug for inhibiting vascular intimal hyperplasia

  • US 20070161642A1
  • Filed: 02/02/2005
  • Published: 07/12/2007
  • Est. Priority Date: 02/09/2004
  • Status: Abandoned Application
First Claim
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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 embedded image 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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