You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[(3-methyl-4-oxo-5,6,7,8-tetrahydro-[1]benzothiolo[2,3-d]pyrimidin-2-yl)sulfanyl]-N-[2-(naphthalen-1-ylmethylsulfanyl)-1,3-benzothiazol-6-yl]acetamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C31H26N4O2S4
assistant