(2S,3aR,4S,5S,11bS)-3-Benzyl-4-ethyl-2,3,3a,4,5,7-hexahydro-1H-pyrrolo[2,3-d]carbazole-2,5,6-tricarboxylic acid trimethyl ester 在
氨 作用下,
以
甲醇 为溶剂,
以81%的产率得到(2S,3aR,4S,5S,11bS)-3-Benzyl-2-carbamoyl-4-ethyl-2,3,3a,4,5,7-hexahydro-1H-pyrrolo[2,3-d]carbazole-5,6-dicarboxylic acid dimethyl ester