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 5-benzyl-2-[4-(4-ethylpiperazine-1-carbonyl)piperidine-1-carbonyl]-7,8-dihydro-6H-pyrazolo[1,5-a][1,4]diazepin-4-one .
user
C27H36N6O3
assistant