[(1S,3S,5S,6S,8S,10S,11S,13R,16S)-16-[tert-butyl(dimethyl)silyl]oxy-8-chloro-10-(2-methoxypropan-2-yloxy)-11,15,18,18-tetramethyl-7-methylidene-12-oxo-3-phenyl-2,4-dioxatetracyclo[12.3.1.01,5.06,11]octadec-14-en-13-yl] acetate 在
吡啶 、
四氧化锇 作用下,
以
四氢呋喃 、
乙醚 为溶剂,
反应 18.0h,
以86%的产率得到[(1S,3S,5S,6R,7S,8S,10S,11S,13R,16S)-16-[tert-butyl(dimethyl)silyl]oxy-8-chloro-7-hydroxy-7-(hydroxymethyl)-10-(2-methoxypropan-2-yloxy)-11,15,18,18-tetramethyl-12-oxo-3-phenyl-2,4-dioxatetracyclo[12.3.1.01,5.06,11]octadec-14-en-13-yl] acetate