[1-(4-methoxyphenyl)vinyloxy]trimethylsilane 、
(1S,4R)-1-(6,7-Dimethoxy-1,2,3,4-tetrahydro-2-isoquinolylcarbonyl)-4,7,7-trimethyl-2-oxa-bicyclo<2.2.1>-heptan-3-one 在
trityl tetrafluoroborate 、
四氯化钛 作用下,
以
二氯甲烷 为溶剂,
反应 2.0h,
生成
(1S,4R)-1-<(1R)-1,2,3,4-tetrahydro-6,7-dimethoxy-1-<2-(4-methoxyphenyl)-2-oxo-1-ethyl>-2-isoquinolylcarbonyl>-4,7,7-trimethyl-2-oxa-bicyclo<2.2.1>heptan-3-one 、 (1S,4R)-1-<(1S)-1,2,3,4-tetrahydro-6,7-dimethoxy-1-<2-(4-methoxyphenyl)-2-oxo-1-ethyl>-2-isoquinolylcarbonyl>-4,7,7-trimethyl-2-oxa-bicyclo<2.2.1>heptan-3-one