[(3aR,5R,6R,7S,7aR)-7-benzoyloxy-2-[[2-[tert-butyl(dimethyl)silyl]oxy-4-methoxyphenyl]methoxy]-5-(9H-fluoren-9-ylmethoxycarbonyloxymethyl)-2-phenyl-5,6,7,7a-tetrahydro-3aH-[1,3]dioxolo[4,5-b]pyran-6-yl] benzoate 、
cyclohexyl 2,3,4-tri-O-benzoyl-β-D-galactopyranoside 在
四丁基高氯酸铵 、
环己醇 作用下,
以
1,2-二氯乙烷 为溶剂,
反应 0.33h,
以38%的产率得到[(2R,3R,4S,5R,6R)-4,5-dibenzoyloxy-6-cyclohexyloxy-2-[[(2R,3R,4S,5R,6R)-3,4,5-tribenzoyloxy-6-(9H-fluoren-9-ylmethoxycarbonyloxymethyl)oxan-2-yl]oxymethyl]oxan-3-yl] benzoate