Methoxy-acetic acid (2R,3S,5R)-5-(4-benzoylamino-2-oxo-2H-pyrimidin-1-yl)-2-hydroxymethyl-tetrahydro-furan-3-yl ester 、
Cytidine, 3'-O-[(acetyloxy)methyl]-N-benzoyl-2'-deoxy-, 5'-benzoate 在
三氟甲磺酸三甲基硅酯 作用下,
以
1,2-二氯乙烷 为溶剂,
反应 1.5h,
以85%的产率得到Benzoic acid (2R,3S,5R)-5-(4-benzoylamino-2-oxo-2H-pyrimidin-1-yl)-3-[(2R,3S,5R)-5-(4-benzoylamino-2-oxo-2H-pyrimidin-1-yl)-3-(2-methoxy-acetoxy)-tetrahydro-furan-2-ylmethoxymethoxy]-tetrahydro-furan-2-ylmethyl ester