[(3R,4R,5S,6R)-2,5-bis[(3-oxo-1,5-dihydro-2,4,3lambda5-benzodioxaphosphepin-3-yl)oxy]-6-(phenylmethoxymethyl)-3-(2,2,2-trichloroethoxycarbonylamino)(213C)oxan-4-yl] (3R)-3-phenylmethoxytetradecanoate 、 allyl 3-O-<(R)-3-benzyloxytetradecanoyl>-2-<(R)-3-benzyloxytetradecanoylamino>-2-deoxy-α-D-glucopyranoside 在
4 A molecular sieve 、
三氟甲磺酸三甲基硅酯 作用下,
以
二氯甲烷 为溶剂,
反应 2.0h,
以80%的产率得到[(2R,3S,4R,5R,6S)-3-hydroxy-2-[[(2R,3R,4R,5S,6R)-5-[(3-oxo-1,5-dihydro-2,4,3lambda5-benzodioxaphosphepin-3-yl)oxy]-6-(phenylmethoxymethyl)-4-[(3R)-3-phenylmethoxytetradecanoyl]oxy-3-(2,2,2-trichloroethoxycarbonylamino)(213C)oxan-2-yl]oxymethyl]-5-[[(3R)-3-phenylmethoxytetradecanoyl]amino]-6-prop-2-enoxyoxan-4-yl] (3R)-3-phenylmethoxytetradecanoate