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 6-[8-(benzylamino)-7-chloro-3-fluoro-6-methyl-1,5-naphthyridin-2-yl]-2-imino-3-methyl-4H-azepin-3-ol .
user
C23H21ClFN5O
assistant