You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-[(5-fluoro-6-propan-2-ylpyrimidin-4-yl)-methylamino]-N-phenylpiperidine-1-carboxamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C20H26FN5O
assistant