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-[7-[(4-chlorocyclohexa-2,4-dien-1-yl)methyl]-2-hydroxy-3-methyl-6-oxo-8-[3-(trifluoromethoxy)phenoxy]-2H-purin-1-yl]-N-oxoacetamide ?
user
C22H19ClF3N5O6
assistant