You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule identified by [2-(8,9-difluoro-3-thia-5-azatetracyclo[12.4.0.02,6.07,12]octadeca-1(18),2(6),4,7(12),8,10,14,16-octaen-13-yl)-5-fluoro-5-methyl-9,12-dioxo-1,2,8-triazatricyclo[8.4.0.03,8]tetradeca-10,13-dien-11-yl]oxymethyl methyl carbonate ?
user