6-(5-bromo-2-hydroxyphenyl)-2-oxo-4-phenyl-1H-pyridine-3-carbonitrile 6-(5-bromo-2-hydroxy-phenyl)-2-oxo-4-phenyl-1H-pyridine-3-carbonitrile 6-(5-bromo-2-hydroxy-phenyl)-2-keto-4-phenyl-1H-pyridine-3-carbonitrile VRV