8,9,10-trimethoxy-13-oxo-5,6,8,13-tetrahydro-8,13a-etheno-[1,3]dioxolo[4,5-
g]isoquino[3,2-
a]isoquinoline-15-carboxylic acid methyl ester 以
乙醇 为溶剂,
生成
1,2,16-trimethoxy-5-oxo-7,8-dihydro-5H-benzo[6,7]azocino[2,1-a][1,3]dioxolo[4,5-g]isoquinoline-14-carboxylic acid methyl ester