You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
propan-2-yl 2-[[[5-(6-amino-2-oxo-1H-pyrimidin-3-ium-3-yl)-4-fluoro-3-hydroxy-4-methyloxolan-2-yl]methoxy-phenoxyphosphoryl]amino]propanoate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C22H31FN4O8P+
assistant