Acetic acid (4aR,5R,6S,8S,8aS)-6-(tert-butyl-dimethyl-silanyloxy)-5-(tert-butyl-dimethyl-silanyloxymethyl)-8-hydroxy-2,2,5-trimethyl-hexahydro-benzo[1,3]dioxin-8a-ylmethyl ester 在
4-二甲氨基吡啶 、
potassium carbonate 作用下,
以
甲醇 为溶剂,
生成 Methanesulfonic acid (4aR,5R,6S,8S,8aS)-6-(tert-butyl-dimethyl-silanyloxy)-5-(tert-butyl-dimethyl-silanyloxymethyl)-8a-hydroxymethyl-2,2,5-trimethyl-hexahydro-benzo[1,3]dioxin-8-yl ester