(2R,8S)-8-Bromomethyl-4-hydroxy-6-(5-methoxy-benzofuran-2-carbonyl)-2-methyl-1-oxo-1,2,3,6,7,8-hexahydro-pyrrolo[3,2-e]indole-2-carboxylic acid methyl ester 、
二甲氨基甲酰氯 在
吡啶 作用下,
生成 (2R,8S)-8-Bromomethyl-4-dimethylcarbamoyloxy-6-(5-methoxy-benzofuran-2-carbonyl)-2-methyl-1-oxo-1,2,3,6,7,8-hexahydro-pyrrolo[3,2-e]indole-2-carboxylic acid methyl ester