3-(2-(E)-methoxycarbonylmethylene-(12br)-1,3,4,6,7,12b-hexahydro-2H-[1,3]dioxolo[4,5-g]pyrido[2,1-a]isoquinolin-3t-yl)-propionic acid methyl ester 在
potassium tert-butylate 作用下,
以
苯 为溶剂,
反应 0.25h,
生成 11-oxo-(8a
r,13a
c)-5,8,8a,9,10,11,13,13a-octahydro-6
H-[1,3]dioxolo[4,5-
g]isoquino[3,2-
a]isoquinoline-12-carboxylic acid methyl ester