You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[2-(4-chlorophenyl)-4-methylpentyl]-2-(6,8-dihydro-5H-imidazo[1,5-a]pyrazine-7-carbonyl)pyrazolo[1,5-a]pyridine-4-carboxamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C27H29ClN6O2
assistant