Synthesis of New Fused Heterocyclic 2-Quinolones and 3-Alkanonyl-4-Hydroxy-2-Quinolones

摘要

Herein, we report the synthesis of 5,12-dihydropyrazino[2,3- :5,6- ′]difuro[2,3- :4,5- ′]-diquinoline-6,14( ,12 )diones, 2-(4-hydroxy-2-oxo-1,2-dihydroquinolin-3-yl)-1,4-diphenyl- butane-1,4-diones and 4-(benzo-[ ]oxazol-2-yl)-3-hydroxy-1 -[4,5]oxazolo[3,2- ]pyridine-1-one. The new candidates were synthesized and identified by different spectroscopic techniques, and X-ray crystallography.