You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 8-[4-[(2,5-dimethylphenyl)methyl]piperazin-1-yl]-7-(2-methoxyethyl)-3-methyl-4,5-dihydropurine-2,6-dione .
user
C22H32N6O3
assistant