You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
5-[[5-[(2S)-1-[(5-propylfuran-2-yl)methyl]piperidin-2-yl]pyrazin-2-yl]amino]pyridine-2-carbonitrile The above is the IUPAC name of a molecule. Write its molecular formula.
user
C23H26N6O
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