You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-N-[[4-cyano-3-[3-[(4-methyl-1,4-diazepan-1-yl)methyl]phenyl]phenyl]methyl]-3-N-[[1,6-diethyl-4-(oxan-4-ylamino)pyrazolo[3,4-b]pyridin-5-yl]methyl]benzene-1,3-dicarboxamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C45H53N9O3
assistant