8-Hydroxy-5-(3,4,5-trimethoxy-phenyl)-6-vinyl-5,6-dihydro-[1,3]dioxolo[4,5-g]quinoline-7-carboxylic acid ethyl ester 在
三甲基溴硅烷 作用下,
以
二氯甲烷 为溶剂,
反应 4.0h,
以70%的产率得到6-(2-Bromo-ethyl)-8-hydroxy-5-(3,4,5-trimethoxy-phenyl)-5,6-dihydro-[1,3]dioxolo[4,5-g]quinoline-7-carboxylic acid ethyl ester