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 N-(4,6-dimethyl-1,3-benzothiazol-2-yl)-N-(oxolan-2-ylmethyl)-1,3-benzothiazole-2-carboxamide .
user
C22H21N3O2S2
assistant