You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 13-[4-(5-chloro-1H-indol-7-yl)-6-oxopyrimidin-1-yl]-3-(difluoromethyl)-9-methyl-3,4,7,15-tetrazatricyclo[12.3.1.02,6]octadeca-1(18),2(6),4,14,16-pentaen-8-one .
user
C28H24ClF2N7O2
assistant