(Z)-γ-(methoxyallyl)tributylstannane 、
[5-benzyloxy-7-(3-benzyloxy-propyl)-3-hydroxy-4a,10a-dimethyl-decahydro-1,8,10-trioxa-anthracen-2-yl]-acetic acid 9,10a-dimethyl-2-phenyl-8-vinyl-dodecahydro-1,3,5,7,11-pentaoxa-benzo[4,5]cyclohepta[1,2-b]naphthalen-9-yl ester 在
碘代三甲硅烷 、 camphor-10-sulfonic acid 、
六甲基二硅氮烷 作用下,
以
二氯甲烷 为溶剂,
以78%的产率得到[(1S,3R,6R,8S,11R,13S,15R,16S,18R)-16-ethenyl-13,15-dimethyl-6-phenyl-2,5,7,12,17-pentaoxatetracyclo[9.8.0.03,8.013,18]nonadecan-15-yl] 2-[(1S,3R,5S,6R,8S,10R,12S,14S)-1,3-dimethyl-14-phenylmethoxy-12-(3-phenylmethoxypropyl)-5-[(Z)-3-tributylstannylprop-1-enoxy]-2,7,11-trioxatricyclo[8.4.0.03,8]tetradecan-6-yl]acetate