You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[3-[(4,7-dimethyl-9-oxo-3-thia-5,7,10,11-tetrazatricyclo[6.4.0.02,6]dodeca-1(8),2(6),4,11-tetraen-10-yl)methyl]phenyl]-methylcarbamic acid The above is the IUPAC name of a molecule. Write its molecular formula.
user
C18H17N5O3S
assistant