You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 2-[2,2-difluoroethyl(2-hydroxyethyl)amino]-6,7-dihydro-5H-cyclopenta[b]pyridine-3-carboximidamide into its molecular formula.
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C13H18F2N4O
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