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 6-(2,4-dimethoxyphenyl)-4,7-dimethyl-2-[(4-methylphenyl)methyl]-4a,9a-dihydropurino[7,8-a]imidazole-1,3-dione .
user
C25H27N5O4
assistant