O-trimethylsilyl-2-methoxy-4,5-methylenedioxyphenol 、 1-<(tert-butyldimethylsilyl)oxy>-2-fluoro-6-<6'-methoxy-2'-methoxymethyl-3'-(3'',4''-methylenedioxyphenyl)-2',3'-dihydro-1',4'-benzodioxin-7'-yl>-3,7-dioxabicyclo<3.3.0>octane 生成 [(3aS,6S,6aR)-6-[(2R,3R)-3-(1,3-benzodioxol-5-yl)-6-methoxy-2-(methoxymethyl)-2,3-dihydro-1,4-benzodioxin-7-yl]-3-[(6-methoxy-1,3-benzodioxol-5-yl)oxy]-3,4,6,6a-tetrahydro-1H-furo[3,4-c]furan-3a-yl]oxy-tert-butyl-dimethylsilane