Dodecanoylamino-acetic acid (2R,3R,4R,5S,6R)-2-bromo-5-(diphenoxy-phosphoryloxy)-3-(2,2,2-trichloro-ethoxycarbonylamino)-6-(2,2,2-trichloro-ethoxycarbonyloxymethyl)-tetrahydro-pyran-4-yl ester 、
2-(diphenylphosphonooxy)ethyl 2-deoxy-3-O-(N-dodecanoylglycyl)-2-(2,2,2-trichloroethoxycarbonylamino)-α-D-glucopyranoside 在
calcium sulfate 、 zinc trifluoromethanesulfonate 作用下,
以
二氯甲烷 为溶剂,
反应 3.0h,
以96%的产率得到[(2R,3S,4R,5R,6S)-2-[[(2R,3R,4R,5S,6R)-5-diphenoxyphosphoryloxy-4-[2-(dodecanoylamino)acetyl]oxy-3-(2,2,2-trichloroethoxycarbonylamino)-6-(2,2,2-trichloroethoxycarbonyloxymethyl)oxan-2-yl]oxymethyl]-6-(2-diphenoxyphosphoryloxyethoxy)-3-hydroxy-5-(2,2,2-trichloroethoxycarbonylamino)oxan-4-yl] 2-(dodecanoylamino)acetate