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-[4-(1-methylindazol-5-yl)phenyl]-6-[[(3R)-1-(oxetane-2-carbonyl)pyrrolidin-3-yl]methyl]-4,6-diazaspiro[2.4]hept-4-en-7-one by IUPAC nomenclature, provide its molecular formula.
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C28H29N5O3
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