(1R,4S,5S,6R,7R)-6-(benzenesulfonyl)-4-[tert-butyl(dimethyl)silyl]oxy-7-ethyl-10-oxatricyclo[5.2.1.01,5]decan-9-one 在
六甲基磷酰三胺 、
lithium hexamethyldisilazane 、 ferrocenium hexafluorophosphate 作用下,
以
四氢呋喃 为溶剂,
反应 21.5h,
以46%的产率得到(1R,4S,5S,6R,7R,8S)-6-(benzenesulfonyl)-8-[(1R,4S,5S,6R,7R,8S)-6-(benzenesulfonyl)-4-[tert-butyl(dimethyl)silyl]oxy-7-ethyl-9-oxo-10-oxatricyclo[5.2.1.01,5]decan-8-yl]-4-[tert-butyl(dimethyl)silyl]oxy-7-ethyl-10-oxatricyclo[5.2.1.01,5]decan-9-one