Design and Synthesis of Some New Quinoxaline‐Based Heterocycles

Considering quinoxaline as a privileged structure for developing probes of impressive therapeutic potentials, some new azole and azine conjugates of quinoxaline were synthesized. Thus, ethyl 3‐amino‐1,4‐dihydroquinoxaline‐2‐carboxylate ( 2 ) was prepared as one‐pot three‐component product and incorporated in a series of manipulations including cyclocondensation reactions to afford a series of pharmacophoric motif conjugates 8–12 , 14, 15–17 , 20–23 , 24–29 , 30 – 37 , and 38–43 in fair yields. The newly synthesized were characterized by IR, 1 H NMR, 13 C NMR, and mass spectral data.