benzyl 2-deoxy-2-[(R)3-hexadecanoyloxytetradecanoylamino]-3-O-(2,2,2-trichloroethoxycarbonyl)-β-D-glucopyranoside 、
2-deoxy-4-O-diphenylphosphono-3-O-[(R)-3-tetradecanoyloxytetradecanoyl]-6-O-(2,2,2-trichloro-1,1-dimethylethoxycarbonyl)-2-(2,2,2-trichloroethoxycarbonylamino)-α-D-glucopyranosyl chloride 在
4 A molecular sieve 、
silver trifluoromethanesulfonate 作用下,
以
1,2-二氯乙烷 为溶剂,
以73%的产率得到[(3R)-1-[[(2R,3R,4R,5S,6R)-6-[[(2R,3R,4R,5S,6R)-5-diphenoxyphosphoryloxy-4-[(3R)-3-tetradecanoyloxytetradecanoyl]oxy-3-(2,2,2-trichloroethoxycarbonylamino)-6-[(1,1,1-trichloro-2-methylpropan-2-yl)oxycarbonyloxymethyl]oxan-2-yl]oxymethyl]-5-hydroxy-2-phenylmethoxy-4-(2,2,2-trichloroethoxycarbonyloxy)oxan-3-yl]amino]-1-oxotetradecan-3-yl] hexadecanoate