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 N-cyclohexyl-N-methyl-2-(4-oxo-7-pyrrolidin-1-ylsulfonyl-2,3-dihydro-1,5-benzothiazepin-5-yl)acetamide ?
user
C22H31N3O4S2
assistant