You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 2-(2-methoxypyridin-3-yl)-4,5,6,7-tetrahydro-1H-pyrrolo[3,2-c]pyridine;hydrochloride into molecular formula.
user
C13H16ClN3O
assistant