甲醇 、 (5S*,7R*,8S*,10S*)-2,3-Epoxy-14-acetoxy-15-(2-methyl)propanoyloxyelema-1,3,11(13)-trien-8,12-olide 在
potassium carbonate 作用下,
反应 0.17h,
以20 mg的产率得到(5S*,7R*,8S*,10S*)-Methyl 2,3-Epoxy-8-hydroxy-14-acetoxy-15-(2-methyl)propanoyloxyelema-1,3,11(13)-trien-12-oate