5'-O-(Bis(4-methoxyphenyl)(phenyl)methyl)-2'-O-methyluridine103285-22-935 % similar Uridine-5'-diphosphoglucose disodium117756-22-634 % similar 2′-Azido-2′-deoxyuridine26929-65-731 % similar Sofosbuvir metabolites gs5665001233335-78-831 % similar