A series of 5C and 5N substituted 3-oxo-2-phenyl-1,2,4-triazine-6-carbonitriles and 8-imino-2-arylpyrimido [4,5-e] [1,2,4]triazine-3,6(2H,5H)-diones (6-aryl-6-azapteridines) are described via a cyclocondensation reaction from the corresponding aryliminohydrazones with CDI. The required aryliminohydrazones were obtained from the starting compound -malononitrile. These prepared compounds were tested for cytotoxic activity on cancer cell lines.
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