You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-[(2R,3S,4R,5R)-5-azido-3-fluoro-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]-4-[methoxy(methyl)amino]pyrimidin-2-one is the IUPAC name of a molecule. Please give its molecular formula.
user
C11H15FN6O5
assistant