N-[(R)-3-undecanoyloxytetradecanoyl]-L-serine benzyl ester 、
2-deoxy-4-O-diphenylphosphono-3-O-[(R)-3-undecanoyloxytetradecanoyl]-6-O-(2,2,2-trichloro-1,1-dimethylethoxycarbonyl)-2-(2,2,2-trichloroethoxycarbonylamino)-α-D-glucopyranosyl chloride 在
silver trifluoromethanesulfonate 、 4 A molecular sieve 、 trans lactol 、
草酰氯 作用下,
以
1,2-二氯乙烷 、
二氯甲烷 为溶剂,
以76%的产率得到N-[(R)-3-undecanoyloxytetradecanoyl]-O-[2-deoxy-4-O-diphenylphosphono-3-O-[(R)-3-undecanoyloxytetradecanoyl]-6-O-(2,2,2-trichloro-1,1-dimethylethoxycarbonyl)-2-(2,2,2-trichloroethoxycarbonylamino)-β-D-glucopyranosyl]-L-serine benzyl ester