You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named 5-[7-[2-[[5-chloro-2-(8-oxa-3-azabicyclo[3.2.1]octan-3-yl)pyridin-4-yl]amino]-2-oxoethyl]-2,3-dimethyl-4-oxopyrrolo[2,3-d]pyrimidin-5-yl]-3-fluoro-2-hydroxybenzamide by IUPAC nomenclature, provide its molecular formula.
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C28H27ClFN7O5
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