亲爱的各位老师们：
感谢你们一直以来对乐研的关注和支持！
乐研启用新域名leyan.com啦！

Quinoxaline, also known as benzopyrazine, is important nitrogen containing heterocyclic compounds, which a ring compound composed of a benzene ring and a pyrazine ring. Its derivatives have gained ... considerable attention in the field of contemporary medicinal chemistry. The moiety is of substantial importance because of its wide array of pharmacological activities such as anti-tumor, anti-cancer, antimalarial, anti-inflammatory, antimicrobial, anti-HIV etc. Diversely substituted quinoxalines are important therapeutic agents in the pharmaceutical industry^[1-6].