You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 6-(2,3-dimethylimidazol-4-yl)-N-[3-(4-methylpiperazin-1-yl)prop-1-en-2-yl]isoquinolin-3-amine into its molecular formula.
user
C22H28N6
assistant