label: 4-amino-2-(4-(1-benzyloxycarbonyl)-2(S)-((1,1-dimethylethyl)amino)carbonyl-piperazinyl)-6,7-dimethoxyquinazoline
label_lc: 4-amino-2-(4-(1-benzyloxycarbonyl)-2(s)-((1,1-dimethylethyl)amino)carbonyl-piperazinyl)-6,7-dimethoxyquinazoline