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 4-[(3S,5S)-3,5-dimethylpiperidin-1-yl]sulfonyl-N-(6-nitro-1,3-benzothiazol-2-yl)benzamide .
user
C21H22N4O5S2
assistant