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 2-(3,4-dimethylphenyl)-5-[[5-methyl-2-(3,4,5-trimethoxyphenyl)-1,3-oxazol-4-yl]methyl]-1,2,3,3a-tetrahydropyrazolo[1,5-a]pyrazin-4-one .
user
C28H32N4O5
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