You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Translate the chemical IUPAC name [2-(9-methylpurin-6-yl)-1,3,3a,4,6,6a-hexahydropyrrolo[3,4-c]pyrrol-5-yl]-(3,4,5-trimethoxyphenyl)methanone into its molecular formula.
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C22H26N6O4
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