Aminopyrazole derivatives, process for the preparation thereof, and composition for preventing or treating ischemic diseases containing the same

An Aminopyrazole compound of Formula 1, or a pharmaceutically acceptable salt thereof:

• wherein
• R1 is —CO2R3, —CH2OR3, —CONR3R4 or
• wherein R3 and R4 are, independently of each other, H, or straight, branched or cyclic C1-C6 alkyl;
• R2 is —(CH2)2Ar wherein Ar is phenyl;
• B is H, phenyl, or C1-C3 alkyl or halogen substituted phenyl;
• n is an integer of 0 to 2;
• Y is S, O, C, SO, SO2 or NR3R4 wherein R3 and R4 are, independently of each other, H, or straight, branched or cyclic C1-C6 alkyl;
• Z is H, halogen, OCH3, NO2, NH2, or straight, branched or cyclic C1-C3 alkyl;
• and
• A is CH or N.