You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule N-[3-[1-[[5-[5-(difluoromethyl)-1,3,4-oxadiazol-2-yl]pyridin-2-yl]methyl]triazol-4-yl]phenyl]-N-methylbutanamide .
user
C22H21F2N7O2
assistant