You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 2-[[(2R)-2-bicyclo[2.2.1]heptanyl]oxy]-N-(2-oxopiperidin-4-yl)-4-(trifluoromethyl)benzamide into molecular formula.
user
C20H23F3N2O3
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