You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(E)-4-(2-bicyclo[2.2.1]heptanyl)-N-[4-(3-chloro-4-fluoroanilino)-7-[(6-methyl-6-azaspiro[2.5]octan-2-yl)methoxy]quinazolin-6-yl]but-2-enamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C34H39ClFN5O2
assistant