N-(1-((2R,4S,5R)-5-((bis(4-methoxyphenyl)(phenyl)methoxy)methyl)-4-((bis(diisopropylamino)phosphaneyl)oxy)tetrahydrofuran-2-yl)-2-oxo-1,2-dihydropyrimidin-4-yl)benzamide 、 [(2R,3R,4R,5R,6R)-5-acetamido-3,4-diacetoxy-6-[2-(2-hydroxy ethoxy) ethoxy]tetrahydropyran-2-yl]methyl acetate 在
四氮唑 作用下,
以
二氯甲烷 、
乙腈 为溶剂,
反应 14.0h,
以1769 mg的产率得到N
4-benzoyl-5'-O-(4,4'-dimethoxytrityl)-3'-O-[(N,N-diisopropylamino)[5-[(3,4,6-tri-O-acetyl-2-acetylamino-2-deoxy-β-D-galactopyranosyl)oxy]-3-oxapentyloxy]phosphinyl]-2'-deoxycytidine