You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
15-fluoro-4-(2-hydroxycyclohexyl)sulfanyl-3,5,10-triazatetracyclo[11.4.0.02,6.07,12]heptadeca-1(13),2(6),4,7(12),8,14,16-heptaen-11-one is the IUPAC name of a molecule. Please give its molecular formula.
user
C20H18FN3O2S
assistant