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 [4-[[(4-amino-6,7-dimethoxyquinazolin-2-yl)methylamino]methyl]-4-phenylpiperidin-1-yl]-cyclobutylmethanone ?
user
C28H35N5O3
assistant