label: 2-(4-(4-(2-pyrimidinyl)-1-piperazinyl)butanoylamino)-4,5-dimethyl-3-thiophenecarboxylic acid ethyl ester
label_lc: 2-(4-(4-(2-pyrimidinyl)-1-piperazinyl)butanoylamino)-4,5-dimethyl-3-thiophenecarboxylic acid ethyl ester