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What is the molecular formula of the compound with this IUPAC name 5-[6-(1-ethyl-4-fluoroindazol-6-yl)-2-oxo-1H-pyridin-3-yl]-10-[4-fluoro-6-[5-(3-methyl-2-oxopiperidin-3-yl)-6-oxo-1H-pyridin-2-yl]indazol-1-yl]-5-methyl-3-azaspiro[5.5]undec-8-en-4-one ?
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