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-(1,3,4,5,7,8,9,9a-octahydropyrrolo[1,2-a][1,4]diazepin-2-yl)-2-(2-hydroxyphenyl)ethanone is given. What is its corresponding molecular formula?
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C16H22N2O2
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