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system
Name the molecular formula for the molecule established as (3R,4S)-3-[[7-(cyclopentylamino)-5-fluoro-4-oxo-3H-quinazolin-2-yl]methylsulfanyl]-4-fluoropyrrolidine-1-carboxylic acid using the IUPAC nomenclature.
user
C19H22F2N4O3S
assistant