You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[2-(cyclohexylamino)-1-(4-fluorophenyl)-2-oxoethyl]-N-[(4-methylphenyl)methyl]pyridine-2-carboxamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C28H30FN3O2
assistant