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system
Name the molecular formula for the molecule established as [(8S)-5,5-dioxo-8-(pyrimidin-2-yloxymethyl)-5lambda6-thia-2-azaspiro[3.4]octan-2-yl]-[(3R)-oxolan-3-yl]methanone using the IUPAC nomenclature.
user
C16H21N3O5S
assistant