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 2-cyclopropyl-1-(7-fluoro-1-methyl-3,4-dihydro-2H-1,5-benzodiazepin-5-yl)-2-methoxyethanone .
user
C16H21FN2O2
assistant