You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named (1S,2R,8R,11R,12S,16S)-2,16-dimethyl-15-(4-methylpyridin-3-yl)-6-azatetracyclo[9.7.0.02,8.012,16]octadec-14-en-5-one by IUPAC nomenclature, provide its molecular formula.
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