Khoumeri, Omar et al. published their research in Synlett in 2016 | CAS: 49679-45-0

Ethyl 3-chloroquinoxaline-2-carboxylate (cas: 49679-45-0) belongs to quinoxaline derivatives. Condensed heterocycles of quinoxalines have become attractive targets in synthetic and medicinal chemistry due to their significant biological activities. Quinoxalines are used as dyes, pharmaceuticals, and antibiotics such as echinomycin, levomycin exhibiting antitumoral properties. Quinoxalines establish also the basis of anthelmintics and receptor antagonists.Formula: C11H9ClN2O2

Rapid and Convenient Synthesis of Original 5-Substituted Quinolino[3,4-b]quinoxalin-6(5H)-ones under Eco-Friendly Conditions was written by Khoumeri, Omar;Vanelle, Francois-Xavier;Crozet, Maxime D.;Terme, Thierry;Vanelle, Patrice. And the article was included in Synlett in 2016.Formula: C11H9ClN2O2 This article mentions the following:

The synthesis of 5-(substituted)quinolino[3,4-b]quinoxalin-6(5H)-one derivatives I [R = H, 2-Cl, 4-Me, etc.] from Et 3-(2-bromophenyl)quinoxaline-2-carboxylate under one-pot Buchwald-Hartwig coupling-lactamization reaction was reported. In the experiment, the researchers used many compounds, for example, Ethyl 3-chloroquinoxaline-2-carboxylate (cas: 49679-45-0Formula: C11H9ClN2O2).

Ethyl 3-chloroquinoxaline-2-carboxylate (cas: 49679-45-0) belongs to quinoxaline derivatives. Condensed heterocycles of quinoxalines have become attractive targets in synthetic and medicinal chemistry due to their significant biological activities. Quinoxalines are used as dyes, pharmaceuticals, and antibiotics such as echinomycin, levomycin exhibiting antitumoral properties. Quinoxalines establish also the basis of anthelmintics and receptor antagonists.Formula: C11H9ClN2O2

Referemce:
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N2 | ChemSpider