You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named 1,7-dimethyl-3-[(2-methylphenyl)methyl]-9-(4-phenoxyphenyl)-6,7,8,9a,10,10a-hexahydro-4aH-purino[7,8-a]pyrimidine-2,4-dione is given. What is its corresponding molecular formula?
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C30H33N5O3
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