3-(4-bromo-2-formyl-phenoxy)-2,2-dimethyl-propionic acid methyl ester 、
6-氯氧化吲哚 、
四氢吡咯 以
甲醇 为溶剂,
以to give E/Z-3-[4-Bromo-2-(6-chloro-2-oxo-1,2-dihydro-indol-3-ylidenemethyl)-phenoxy]-2,2-dimethyl-propionic acid methyl ester as a yellow solid (2.7 g)的产率得到Z-3-[4-Bromo-2-(6-chloro-2-oxo-1,2-dihydro-indol-3-ylidenemethyl)-phenoxy]-2,2-dimethyl-propionic acid methyl ester