英文别名Sofosbuvir impurity 2; Sofosbuvir Impurity 56; N-Benzoyl-3',5'-di-O-benzoyl-2'-chloro-2'-deoxy-2'-methylcytidine; Cytidine, N-benzoyl-2'-chloro-2'-deoxy-2'-methyl-, 3',5'-dibenzoate; [(2R,3R,4R,5R)-5-(4-benzamido-2-oxopyrimidin-1-yl)-3-benzoyloxy-4-chloro-4-methyloxolan-2-yl]methyl benzoate