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 6-methyl-2,3,4,4a,5,11b-hexahydro-1H-[1,3]benzodioxolo[5,6-c][2,6]naphthyridine is given. What is its corresponding molecular formula?
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C14H18N2O2
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