Pharmaceutical IntermediateChina (2R) -2-Deoxy-2-Fluoro-2-Methyl-D-Erythropentonic Acid Gamma-Lactone 3, 5-Dibenzoate CAS: 874638-80-9, Find details about China 874638-80-9, Intermediate of Sofosbuvir from (2R) -2-Deoxy-2-Fluoro-2-Methyl-D-Erythropentonic Acid Gamma-Lactone 3, 5-Dibenzoate CAS: 874638-80-9