You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[2-[[(3R)-3-methyl-1,1-dioxothiolan-3-yl]amino]-2-oxoethyl] 4-(difluoromethoxy)benzoate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C15H17F2NO6S
assistant