You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(3S)-1-[[(2R)-2,6-dimethyl-3-oxo-4H-1,4-benzoxazin-7-yl]sulfonyl]-N-(3-methylphenyl)piperidine-3-carboxamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C23H27N3O5S
assistant