| abstract |
The present invention relates to new anti-platelet drugs, and novel compounds that become active ingredients thereof. The present invention provides an anti-platelet drug comprising a compound represented by formula (I) or a pharmacologically acceptable salt thereof as an active ingredient. (I) (Wherein X represents N or CR 1d , X b1 to X b5 are the same or different and represent nitrogen or carbon, R 1a to R 1d are the same or different and represent a hydrogen atom, R 2 represents an aryl which may be substituted, or an aryloxy group which may be substituted, or an alkoxy group which may be substituted, an alkylthio which may be substituted, an alkenyl, a cycloalkyl, a halogen, a cyano, Lt; 3 > represents aryl which may be substituted, or heteroaryl which may be substituted) |