{(2R,3R,5R,7R,9S,12R)-2-(2-Benzyloxy-ethyl)-9-[2-(4-methoxy-benzyloxy)-ethyl]-3,12-dimethyl-1,6,8-trioxa-dispiro[4.1.5.2]tetradec-12-yloxy}-tert-butyl-dimethyl-silane 在
氟化氢吡啶 作用下,
以
乙腈 为溶剂,
反应 2.5h,
以40%的产率得到{(2R,3R,5S,7R,9S,12R)-2-(2-Benzyloxy-ethyl)-9-[2-(4-methoxy-benzyloxy)-ethyl]-3,12-dimethyl-1,6,8-trioxa-dispiro[4.1.5.2]tetradec-12-yloxy}-tert-butyl-dimethyl-silane