You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named 1-(4-bromo-11-sulfanylidene-8-oxa-10,12-diazatricyclo[7.3.1.02,7]trideca-2(7),3,5-trien-13-yl)ethanone is given. What is its corresponding molecular formula?
user
C12H11BrN2O2S
assistant