You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule 1-[(3-oxo-4H-1,4-benzoxazin-6-yl)sulfonyl]-N-[4-(trifluoromethoxy)phenyl]piperidine-3-carboxamide ?
user
C21H20F3N3O6S
assistant