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 6-dimethylphosphoryl-7-fluoro-2-methyl-N-[[2-methyl-3-(trifluoromethyl)phenyl]methyl]quinazolin-4-amine .
user
C20H20F4N3OP
assistant