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 3-methyl-3-[4-(3-methyl-2H-pyrazolo[3,4-c]pyridine-5-carbonyl)piperazine-1-carbonyl]cyclopentan-1-one .
user
C19H23N5O3
assistant