You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule 17-[[5-(trifluoromethyl)furan-2-yl]methyl]-5,7,11-trioxa-17-azapentacyclo[10.6.1.02,10.04,8.016,19]nonadeca-2,4(8),9,12,14,16(19)-hexaen-18-one into molecular formula.
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C21H12F3NO5
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