You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2S)-2-[(3-methoxyphenyl)methyl-[3-(1,1,3-trioxo-1,2-benzothiazol-2-yl)propanoyl]amino]-N-(2-methylpropyl)butanamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C26H33N3O6S
assistant