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system
Name the molecular formula for the molecule established as (2S,7S)-2-(4-methoxy-3-nitrophenyl)-7-(2-methylbutan-2-yl)-2,3,5,6,7,8-hexahydro-1H-[1]benzothiolo[2,3-d]pyrimidin-4-one using the IUPAC nomenclature.
user
C22H27N3O4S
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