You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 1-[6-(2,3-dimethylimidazol-4-yl)isoquinolin-3-yl]-3-[(3R)-3-methylmorpholin-4-yl]propan-2-one by IUPAC nomenclature, provide its molecular formula.
user
C22H26N4O2
assistant