You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance 2-(4-cyclobutylpiperazin-1-yl)-7-[(4-fluorophenyl)methyl]-5,6,8,9-tetrahydropyrimido[4,5-d]azepine .
user
C23H30FN5
assistant