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 5-[(3S)-1-(2,6-difluorobenzoyl)piperidin-3-yl]-N-(4-fluorophenyl)-1,3,4-thiadiazole-2-carboxamide .
user
C21H17F3N4O2S
assistant