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system
Name the molecular formula for the molecule established as N-cyclopropyl-N-[2-[(1R)-1-(2,4-difluorophenyl)-3,4-dihydro-1H-pyrrolo[1,2-a]pyrazin-2-yl]-2-oxoethyl]cyclopropanecarboxamide using the IUPAC nomenclature.
user
C22H23F2N3O2
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