diphenylmethyl 2,6-anhydro-3-[(R)-3-(benzyloxy)tetradecanamido]-4-O-[(R)-3-(benzyloxy)tetradecanoyl]-3-deoxy-D-glycero-D-ido-heptonate 、
(R)-3-Tetradecanoyloxy-tetradecanoic acid (2R,3S,4R,5R)-2-benzyloxycarbonyloxymethyl-3-(diphenoxy-phosphoryloxy)-6-(2,2,2-trichloro-acetimidoyloxy)-5-(2,2,2-trichloro-ethoxycarbonylamino)-tetrahydro-pyran-4-yl ester 在
三氟甲磺酸三甲基硅酯 、 4 A molecular sieve 作用下,
以
二氯甲烷 为溶剂,
反应 1.0h,
以289 mg的产率得到benzhydryl (2S,3R,4R,5S,6R)-6-[[(2R,3R,4R,5S,6R)-5-diphenoxyphosphoryloxy-6-(phenylmethoxycarbonyloxymethyl)-4-[(3R)-3-tetradecanoyloxytetradecanoyl]oxy-3-(2,2,2-trichloroethoxycarbonylamino)oxan-2-yl]oxymethyl]-5-hydroxy-3-[[(3R)-3-phenylmethoxytetradecanoyl]amino]-4-[(3R)-3-phenylmethoxytetradecanoyl]oxyoxane-2-carboxylate