You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule (2S,4S)-4-[4-(3-chloro-2-fluoroanilino)-7-methoxyquinazolin-6-yl]oxy-N-(cyanomethyl)-1-(deuteriomethyl)pyrrolidine-2-carboxamide ?
user
C23H22ClFN6O3
assistant