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3,4-Dihydro-3-hydroxy-4-(1-methyl-2-oxo-3-pyrrolidinyl)-2,2-dimethyl-2H-1-benzopyran-6-carbonitrile Structure

3,4-Dihydro-3-hydroxy-4-(1-methyl-2-oxo-3-pyrrolidinyl)-2,2-dimethyl-2H-1-benzopyran-6-carbonitrile