You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-(5,6-dimethoxypyridin-3-yl)-6-[5-(2-hydroxypropan-2-yl)pyridin-3-yl]pyrrolo[3,4-b]pyridin-5-ol The above is the IUPAC name of a molecule. Write its molecular formula.
user
C22H22N4O4
assistant