S-[(1R,2S,3R)-1-[(4-methoxybenzyloxy)methyl]-2,3-bis(4-methoxybenzyloxy)-4-(tert-butyldiphenylsiloxy)butyl] (2E,4R,5R,6E,8E,10S,11R,12S)-2,4,6,8,10,12-hexa-methyl-5-(triphenylsiloxy)-11-(4-methoxybenzyloxy)-2,6,8-docosatrienethioate 在
四丁基氟化铵 、
溶剂黄146 作用下,
以
四氢呋喃 为溶剂,
反应 4.0h,
以79%的产率得到(2E,6E,8E)-(4R,5R,10S,11R,12S)-5-Hydroxy-11-(4-methoxy-benzyloxy)-2,4,6,8,10,12-hexamethyl-docosa-2,6,8-trienethioic acid S-[(1R,2S,3R)-4-hydroxy-2,3-bis-(4-methoxy-benzyloxy)-1-(4-methoxy-benzyloxymethyl)-butyl] ester