You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name (3S)-1-[(3-fluorophenyl)methyl]-N-[(2R)-1-imidazol-1-ylpropan-2-yl]piperidine-3-carboxamide into its molecular formula.
user
C19H25FN4O
assistant