Compound (1) reacted with malononitrile, phenyl isothiocyanate, urea and thiourea to give the pyridine derivatives (3), (4) and (6) respectively. Compound (2) reacts with the same reagents to give the naphthyridine derivative (8) and the pyrido-pyrimidine derivatives (9) and (10) respectively.
AFAF A.A ELBANANY ,
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