5'-O-[cyclosaligenyl-3,5-di(tert-butyl)-6-fluoro]-3'-deoxy-3'-fluorothymidine 生成 5'-O-[cyclo-3,5-di(tert-butyl)-6-fluorosaligenyl]-3'-deoxy-3'-fluorothymidine monophosphate 、 5'-O-[cyclo-3,5-di(tert-butyl)-6-fluorosaligenyl]-3'-deoxy-3'-fluorothymidine monophosphate