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 tert-butyl N-[1-[4-[2-(4-methylpiperazin-1-yl)-6-phenylpyrido[2,3-d]pyrimidin-7-yl]phenyl]cyclobutyl]carbamate .
user
C33H38N6O2
assistant