在
N,N,N',N'-四甲基胍叠氮化物 作用下,
以
硝基乙烷 为溶剂,
反应 4.0h,
以96%的产率得到[(1R,3'R,4S,5'S,6S,7S,8S,9R,10R,12S,13S,15R,18S)-15-azido-3'-[tert-butyl(dimethyl)silyl]oxy-5'-[[tert-butyl(diphenyl)silyl]oxymethyl]-5',7,9,13-tetramethyl-16-oxo-8-trimethylsilyloxyspiro[5-oxapentacyclo[10.8.0.02,9.04,8.013,18]icos-2-ene-6,2'-oxolane]-10-yl] acetate