You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named 3-[7-[4-[4-[[1-[(7R)-7-ethyl-7-hydroxy-5,6-dihydrocyclopenta[b]pyridin-2-yl]-3-oxo-2-prop-2-enylpyrazolo[3,4-d]pyrimidin-6-yl]amino]-N-methylanilino]butylamino]-3-oxo-1H-isoindol-2-yl]piperidine-2,6-dione by IUPAC nomenclature, provide its molecular formula.
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C42H46N10O5
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