You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 3-fluoro-N-[(1R)-3-[(6-methylpyridin-2-yl)methyl]-3-azabicyclo[3.1.0]hexan-1-yl]benzamide into molecular formula.
user
C19H20FN3O
assistant