You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Name the molecular formula for the molecule established as 2-O-[(2R,3S,4R,5R)-2-[[[(2R,3R,4R,5R)-5-(4-amino-2-oxopyrimidin-1-yl)-4-(oxolan-2-yloxy)-2-(phosphonooxymethyl)oxolan-3-yl]oxy-hydroxyphosphoryl]oxymethyl]-5-(6-aminopurin-9-yl)-4-hydroxyoxolan-3-yl] 1-O-[[4-[[2-(4-fluorophenyl)acetyl]amino]phenyl]methyl] (2S,4R)-4-(4,4-difluoropiperidin-1-yl)pyrrolidine-1,2-dicarboxylate using the IUPAC nomenclature.
user
C49H58F3N11O19P2
assistant