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What is the molecular formula of the compound with this IUPAC name (2R)-N-[(E)-(3-chlorophenyl)methylideneamino]-2-[(7S)-7-methyl-4-oxo-5,6,7,8-tetrahydro-[1]benzothiolo[2,3-d]pyrimidin-3-yl]propanamide ?
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C21H21ClN4O2S
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