methyl (1R*,3S*,3aS*,6S*,7R*,7aS*,8S*)-8-<(t-butyldimethylsilyl)oxy>-5,5-(2'',2''-dimethylpropane-1'',3''-diyldioxy)-7,7a-epoxy-3-(prop-2'-enyl)-3-propionyloxyoctahydro-3a,6-ethano-3aH-indene-1-carboxylate 在
potassium tert-butylate 作用下,
以
四氢呋喃 、
叔丁醇 为溶剂,
反应 0.25h,
以100%的产率得到methyl (3R*,3aS*,6S*,7R*,8S*)-8-<(t-butyldimethylsilyl)oxy>-5,5-(2'',2''-dimethylpropane-1'',3''-diyldioxy)-7-hydroxy-3-(prop-2'-enyl)-3-propionyloxy-2,3,4,5,6,7-hexahydro-3a,6-ethano-3aH-indene-1-carboxylate