[(1R,3S,4aS,6aS,10aR,10bS)-1-[tert-butyl(dimethyl)silyl]oxy-3-[2-[tert-butyl(dimethyl)silyl]oxypropan-2-yl]-6a,7,10b-trimethyl-2,3,4a,5,6,9,10,10a-octahydro-1H-benzo[f]chromen-8-yl]-[1-(2-trimethylsilylethoxymethyl)indol-3-yl]methanone 以
乙腈 为溶剂,
反应 5.5h,
以80%的产率得到(1S,2S,5S,7S,9R,10S,11R,14S)-9-[tert-butyl(dimethyl)silyl]oxy-7-[2-[tert-butyl(dimethyl)silyl]oxypropan-2-yl]-1,2,10-trimethyl-23-(2-trimethylsilylethoxymethyl)-6-oxa-23-azahexacyclo[12.10.0.02,11.05,10.016,24.017,22]tetracosa-16(24),17,19,21-tetraen-15-one