3,4-二氢-2H-吡喃 、 benzyl 7-[(1R,2R,3R,5S)-2-[3-[tert-butyl(dimethyl)silyl]oxy-4,4-difluorooct-1-enyl]-5-hydroxy-3-(oxan-2-yloxy)cyclopentyl]heptanoate 在
camphor-10-sulfonic acid 作用下,
以
二氯甲烷 为溶剂,
反应 0.83h,
以100%的产率得到benzyl 7-[(1R,2R,3R,5S)-2-[3-[tert-butyl(dimethyl)silyl]oxy-4,4-difluorooct-1-enyl]-3,5-bis(oxan-2-yloxy)cyclopentyl]heptanoate