(1R,2S,4S,5R,7R,10R,11S)-16-[(2S,3R)-4-[(2S,3R)-3-[[tert-butyl(dimethyl)silyl]oxymethyl]-2,3-dimethyloxiran-2-yl]-3-hydroxybutan-2-yl]-7-[dimethyl(phenyl)silyl]-5-hydroxy-10-methyl-3-oxapentacyclo[9.8.0.02,4.05,10.014,19]nonadeca-14(19),15,17-trien-9-one 在
四丁基氟化铵 作用下,
以
四氢呋喃 为溶剂,
反应 0.08h,
生成 (1aS,1bR,3R,5aR,5bS,11bR,11cS)-3-(Dimethyl-phenyl-silanyl)-1b-hydroxy-9-[(1S,2R)-2-hydroxy-3-((2S,3R)-3-hydroxymethyl-2,3-dimethyl-oxiranyl)-1-methyl-propyl]-5a-methyl-1b,2,3,4,5a,5b,6,7,11b,11c-decahydro-1aH-1-oxa-cyclopropa[g]chrysen-5-one