You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 3-(3-chloro-2-methoxyanilino)-2-(1H-pyrazolo[4,3-b]pyridin-7-yl)-6,7-dihydro-5H-pyrazolo[1,5-a]pyrazin-4-one into molecular formula.
user
C19H16ClN7O2
assistant