1-[(2S,3S,4R)-3,4-dihydro-2-dimethoxymethyl-3-hydroxy-2-methyl-6-nitro-2H-1-benzopyran-4-yl]-(2S)-2,3-dihydro-1H-indole-2-carboxylic acid methyl ester 在
2,3-二氯-5,6-二氰基-1,4-苯醌 作用下,
以
苯 为溶剂,
反应 6.0h,
生成 1-[(2S,3S,4R)-3,4-dihydro-2-dimethoxymethyl-3-hydroxy-2-methyl-6-nitro-2H-1-benzopyran-4-yl]-1H-indole-2-carboxylic acid methyl ester