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system
Name the molecular formula for the molecule established as [(2S,4R,5R)-5-(5-amino-2,7-dioxo-6H-[1,3]thiazolo[4,5-d]pyrimidin-3-yl)-4-pyrrolidin-1-yloxolan-2-yl]methyl benzoate using the IUPAC nomenclature.
user
C21H23N5O5S
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