<1S-<1α(4R*,5S*),3α,4β,5α,6α(2E,4R*,6R*),7β>>-1-<4-(acetyloxy)-5-methyl-3-methylene-6-phenylhexyl>-4,6,7-trihydroxy-2,8-dioxabicyclo<3.2.1>octane-3,4,5-tricarboxylic acid, 6-(4,6-dimethyl-2-octenoate), 3,4,5-tris-(4-nitrobenzyl) ester 在
sodium hydroxide 作用下,
以
四氢呋喃 为溶剂,
反应 21.0h,
以89%的产率得到<1S-<1α(4R*,5S*),3α,4β,5β,6β(2E,4R*,6R*),7β>>-1-<4-(acetyloxy)-5-methyl-3-methylene-6-phenylhexyl>-4,6,7-trihydroxy-2,8-dioxabicyclo<3.2.1>octane-3,4,5-tricarboxylic acid, 6-(4,6-dimethyl-2-octenoate), 4,5-bis(4-nitrobenzyl) ester