Patent ID: 8143262

Claim:
A compound represented by Chemical Formula 1, or pharmaceutically acceptable salts thereof: wherein in Chemical Formula (1), R 1 and R 2 , being same or different, independently represent hydrogen atom, a linear or branched, saturated or unsaturated (C 1 -C 7 )alkyl, a linear or branched, saturated or unsaturated (C 1 -C 7 )alkyl containing halogen atom(s), (C 3 -C 7 )cycloalkyl, or (C 3 -C 7 )cycloalkyl(C 1 -C 7 )alkyl, R 3 represents an aryl group represented by one of the following Chemical Formulas: wherein A is N or NO; m and n independently represent an integer from 0 to 4; X, being same or different, independently represents a linear or branched, saturated or unsaturated (C 1 -C 7 )alkyl, (C 1 -C 7 )alkoxy, (C 1 -C 7 )alkylthio, (C 1 -C 7 )alkoxy(C 1 -C 7 )alkyl, (C 1 -C 7 )alkoxycarbonyl, (C 1 C 1 -C 7 )alkoxycarbonyl(C 1 -C 7 )alkoxy, (C 1-C 7 )alkoxycarbonyl(C 1 -C 7 )alkylamino, (C 1 -C 7 )alkoxycarbonyl(C 1 -C 7 )alkylaminocarbonyl, (C 1 -C 7 )alkylcarbonyloxy(C 1 -C 7 )alkoxycarbonyl, hydroxy, halogen, cyano, nitro, amino, mono or di(C 1 -C 7 )alkylamino, mono or di(C 1 -C 7 )alkylaminocarbonyl, (C 3 -C 7 )cycloalkylamino, (C 1 -C 7 )alkylcarbonylamino, aminocarbonyl, morpholine, morpholine oxide, piperazine, piperazine oxide, guanidine, urea, (C 1 -C 7 )alkylguanidine, (C 1 -C 7 )alkylurea, phenyl, phenoxy, benzyl, benzyloxy, thiobenzyl, carboxylic acid, carboxyl(C 1 -C 7 )alkylamino, (C 1 -C 7 )alkylcarbonyl, or benzoyl; provided that (C 1 -C 7 )alkyl, (C 3 -C 7 )cycloalkyl, (C 3 -C 7 )cycloalkyl(C 1 -C 7 )alkyl, phenyl or benzyl in R 1 , R 2 , R 3 and X may be substituted with (C 1 -C 7 )alkoxy, halogen, nitro, cyano, hydroxy, amino, or carboxylic acid.