You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-(1,3-benzothiazol-2-ylmethyl)-N-methyl-2-pyrrolidin-3-ylacetamide;dihydrochloride The above is the IUPAC name of a molecule. Write its molecular formula.
user
C15H21Cl2N3OS
assistant