benzyl 7-(5-benzyloxycarbonyl-3-ethyl-4-methyl-2-pyrrolyl)-3,5,5-trimethyl-4,5,6,7-tetrahydro-1H-indole-2-carboxylate 在
palladium on activated charcoal
氢气 、
三乙胺 作用下,
以
丙酮 为溶剂,
20.0 ℃
、275.79 kPa
条件下,
以88%的产率得到7-(5-carboxy-3-ethyl-4-methyl-2-pyrrolyl)-3,5,5-trimethyl-4,5,6,7-tetrahydro-1H-indole-2-carboxylic acid