6-氯氧化吲哚 、
4-(4-bromo-2-formyl-phenoxy)-benzoic acid methyl ester 、
四氢吡咯 以
甲醇 为溶剂,
反应 2.0h,
以to give E/Z-4-[4-bromo-2-(6-chloro-2-oxo-1,2-dihydro-indol-3-ylidenemethyl)-phenoxy]-benzoic acid methyl ester as a bright yellow solid (Yield 3 g, 81%)的产率得到Z-4-[4-bromo-2-(6-chloro-2-oxo-1,2-dihydro-indol-3-ylidenemethyl)-phenoxy]-benzoic acid methyl ester