英文别名
3-(2-ethoxycarbonyl-ethyl)-5-ethyl-pyrrole-2,4-dicarboxylic acid 4-benzyl ester 2-ethyl ester;4-benzyl 2-ethyl 3-(3-ethoxy-3-oxopropyl)-5-ethyl-1H-pyrrole-2,4-dicarboxylate;4-O-benzyl 2-O-ethyl 3-(3-ethoxy-3-oxopropyl)-5-ethyl-1H-pyrrole-2,4-dicarboxylate