3-(2-Methoxycarbonyl-ethyl)-4-methoxycarbonylmethyl-1H-pyrrole-2,5-dicarboxylic acid 2-benzyl ester 5-methyl ester 在
palladium on activated charcoal
氢气 作用下,
生成
3-(2-methoxycarbonyl-ethyl)-4-methoxycarbonylmethyl-pyrrole-2,5-dicarboxylic acid 5-methyl ester