You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2R,3R,5R)-5-(4-amino-2-oxopyrimidin-1-yl)-4,4-difluoro-3-hydroxy-2-(hydroxymethyl)oxolane-2-carbonitrile is the IUPAC name of a molecule. Please give its molecular formula.
user
C10H10F2N4O4
assistant