You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 1-[(3aS,7aR)-3a-(pyridin-2-yloxymethyl)-2,3,4,6,7,7a-hexahydrofuro[3,2-c]pyridin-5-yl]-2-cyclopropylethanone;2,2,2-trifluoroacetic acid into its molecular formula.
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C20H25F3N2O5
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