You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
6-[5-(4-fluoro-3-methoxyphenyl)pyridin-3-yl]-1-azatricyclo[6.3.1.04,12]dodeca-4,6,8(12)-triene-11-thiol The above is the IUPAC name of a molecule. Write its molecular formula.
user
C23H21FN2OS
assistant