You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule 3-(2-methylpyridin-4-yl)-6-[(6-methylpyridin-2-yl)methyl]-2,3,3a,4,4a,5,8,8a,9,9a-decahydro-1H-pyrazolo[4,3-g]quinazolin-7-one into molecular formula.
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C22H28N6O
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