You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance 1-[2-(6,7-dimethoxy-4-methyl-3,4-dihydro-1H-isochromen-1-yl)ethyl]-4-(2-methylphenyl)piperazine .
user
C25H34N2O3
assistant