4-Chloro-2-methylquinolines in reaction with 3-aminopyridine yielded 4-quinolinamines, which upon cyclisation under Vilsmeier-Haak conditions afforded the title compounds.Among heterocyclic compounds 1,6-naphthyridines have received much interest and attention especially due to their pharmacological activities [1][2][3][4]. A recent investigation indicated that 1,6-naphthyridines possess properties of human cytomegalovirus inhibitors [5]. A number of heterocyclic compounds has been synthesized using Vilsmeier reagent for cyclization purposes [6][7][8][9][10][11][12].In present work the coupling of 4-haloquinolines with 3-aminopyridine by nucleophilic subsitution resulted in quinolinamines. The latter were further cyclized by Vilsmeier-Haak reagent. N Cl Me R R N N H 2 N N N Me R R N N N Me R R 2 1 + -HCl 1 2 1 2 H DMF/POCl 3 2 1 3 EtOH 1-3 a R 1 = R 2 = H; b R 1 = Me, R 2 = H; c R 1 = H, R 2 = Me; d R 1 = OMe, R 2 = H; e R 1 = H, R 2 = OMe; f R 1 = H, R 2 = NO 2