<1S-<1α(4R*,5S*),3α,4β,5α,6α(2E,4R*,6R*),7β>>-1-<4-(acetyloxy)-5-methyl-3-methylene-6-phenylhexyl>-4,6-dihydroxy-7-<<(1,1-dimethylethyl)dimethylsilanyl>oxy>-2,8-dioxabicyclo<3.2.1>octane-3,4,5-tricarboxylic acid, 6-(4,6-dimethyl-2-octenoate)... 在
盐酸 、 sodium tetrahydroborate 、 3-ethyl-2-chlorobenzoxazolium tetrafluoroborate 、
三乙胺 作用下,
以
1,4-二氧六环 为溶剂,
反应 6.5h,
生成
<1S-<1α(4R*,5S*),3α,4α,5α,6α(2E,4R*,6R*),7β>>-1-<4-(acetyloxy)-5-methyl-3-methylene-6-phenylhexyl>-4,6-dihydroxy-7-<<(1,1-dimethylethyl)dimethylsilanyl>oxy>-2,8-dioxabicyclo<3.2.1>octane-3,5-dicarboxylic acid, 6-(4,6-dimethyl-2-octenoate), 3,5-...