(4'S,5'S)-2'-Methylsulfanyl-2-oxo-1,2,4',5'-tetrahydro-spiro[indole-3,3'-pyrrole]-4',5'-dicarboxylic acid dimethyl ester 在
溶剂黄146 作用下,
以
xylene 为溶剂,
生成 (4'S,5'S)-2'-Methylsulfanyl-2-oxo-1,2,4',5'-tetrahydro-spiro[indole-3,3'-pyrrole]-4',5'-dicarboxylic acid dimethyl ester