(3aR)-2-phenyl-5c-(3,4,5-trimethoxy-phenyl)-(3ar)-3,3a,4,5-tetrahydro-2H-[1,3]dioxolo[4',5':4,5]benzo[1,2-g]indazole-4c-carboxylic acid methyl ester 在
溴 作用下,
以
氯仿 为溶剂,
生成 (3aR)-2-(4-bromo-phenyl)-5c-(3,4,5-trimethoxy-phenyl)-(3ar)-3,3a,4,5-tetrahydro-2H-[1,3]dioxolo[4',5':4,5]benzo[1,2-g]indazole-4c-carboxylic acid methyl ester