[(3aS,4S,6R,7R,7aS)-7-[(4-methoxyphenyl)methoxy]-4-[[methoxy-[[(2R,3S,4S,5R,6S)-3,4,5-tribenzoyloxy-6-ethylsulfanyloxan-2-yl]methoxy]phosphoryl]methyl]-2,2-dimethyl-4,6,7,7a-tetrahydro-3aH-[1,3]dioxolo[4,5-c]pyran-6-yl]methyl benzoate 、 [(3aS,4S,6R,7R,7aS)-4-[[[(2R,3S,4S,5R,6S)-6-[[(3aS,4S,6R,7R,7aS)-6-(benzoyloxymethyl)-4-[[dec-9-enoxy(methoxy)phosphoryl]methyl]-2,2-dimethyl-4,6,7,7a-tetrahydro-3aH-[1,3]dioxolo[4,5-c]pyran-7-yl]oxy]-3,4,5-tribenzoyloxyoxan-2-yl]methoxy-methoxyphosphoryl]methyl]-7-hydroxy-2,2-dimethyl-4,6,7,7a-tetrahydro-3aH-[1,3]dioxolo[4,5-c]pyran-6-yl]methyl benzoate 在
4 A molecular sieve 、
三氟甲烷磺酸甲酯 作用下,
以
二氯甲烷 为溶剂,
反应 7.0h,
以75%的产率得到