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-[5-[(4-methylpiperazin-1-yl)methyl]-1H-pyrrolo[2,3-b]pyridin-3-yl]pyrazolo[1,5-a]pyridin-3-yl]-piperidin-1-ylmethanone .
user
C26H31N7O
assistant