Acetic acid (3S,4R,5R,6S)-2,5-diacetoxy-6-(2-acetoxy-ethyl)-4-methyl-tetrahydro-pyran-3-yl ester 在
三氟甲磺酸三甲基硅酯 、
三氟化硼乙醚 作用下,
以
乙腈 为溶剂,
生成 [(2R,3R,4aS,5aS,10aR,11S,11aS)-2-Allyl-9-(4-methoxy-phenyl)-11-methyl-decahydro-1,5,8,10-tetraoxa-cyclohepta[b]naphthalen-3-yloxy]-tert-butyl-dimethyl-silane