You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name N-[cyclopropyl(pyridin-2-yl)methyl]-1-[(2,6-difluorophenyl)methyl]-N-methyltriazole-4-carboxamide into its molecular formula.
user
C20H19F2N5O
assistant