(2S,3R,4R,5S,6R)-2-(benzyloxy)-5-hydroxy-6-(hydroxymethyl)-3-(((2,2,2-trichloroethoxy)carbonyl)amino)tetrahydro-2H-pyran-4-yl palmitate 、
(R)-(2R,3S,4R,5R,6R)-2-((benzyloxy)methyl)-3-((bis(benzyloxy)phosphoryl)oxy)-6-(2,2,2-trichloro-1-iminoethoxy)-5-(((2,2,2-trichloroethoxy)carbonyl)amino)tetrahydro-2H-pyran-4-yl 3-(tetradecanoyloxy)tetradecanoate 在
三氟甲磺酸三甲基硅酯 作用下,
以
二氯甲烷 为溶剂,
反应 0.5h,
以94%的产率得到(2R,3R,4R,5S,6R)-2-(benzyloxy)-6-(((2R,3R,4R,5S,6R)-6-(benzyloxymethyl)-5-(bis(benzyloxy)phosphoryloxy)-4-((R)-3-(tetradecanoyloxy)tetradecanoyloxy)-3-((2,2,2-trichloroethoxy)carbonylamino)tetrahydro-2H-pyran-2-yloxy)methyl)-5-hydroxy-3-((2,2,2-trichloroethoxy)carbonylamino)tetrahydro-2H-pyran-4-yl palmitate