2,2,2-三氯代亚氨逐乙酸-4-甲氧基苄酯 、
(2S,4S,5S,6R,9S,10S,11R)-2,5,10-Tris-(tert-butyl-dimethyl-silanyloxy)-4,9-dimethyl-1-triethylsilanyloxy-11-[(2R,3R,4S,5S,6S)-3,4,5-tris-(tert-butyl-dimethyl-silanyloxy)-6-propyl-tetrahydro-pyran-2-yl]-dodecan-6-ol 在
三氟甲磺酸 作用下,
以
乙醚 为溶剂,
反应 12.0h,
以37%的产率得到(2S,3S,4S,5R,6R)-3,4,5-Tris-(tert-butyl-dimethyl-silanyloxy)-2-propyl-6-[(1R,2S,3S,6R,7S,8S,10S)-2,7,10-tris-(tert-butyl-dimethyl-silanyloxy)-6-(4-methoxy-benzyloxy)-1,3,8-trimethyl-11-triethylsilanyloxy-undecyl]-tetrahydro-pyran