You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(5R,6R)-2-chloro-5-[(7,8-difluoro-2-methylquinazolin-5-yl)amino]-8,8-dimethyl-6-(trifluoromethyl)-5,7-dihydronaphthalene-1,6-diol The above is the IUPAC name of a molecule. Write its molecular formula.
user
C22H19ClF5N3O2
assistant