Friedel-Crafts heteroarylation of (hetero)arenes: A facile entry to 4-(hetero)aryl quinazolines and quinolines
作者:Shailesh Kumar、Devi Prasad Sahu
DOI:10.1002/jhet.144
日期:2009.7
Anhydrous AlCl3-mediated heteroarylation of various arenes and heteroarenes with 2,4-dichloro-quinazoline () and 4-chloroquinoline () afforded exclusively 4-aryl/heteroarylquinazolines () and 4-aryl/heteroarylquinolines (), respectively. Compared with the available synthetic protocols, aluminumchloride induced CC bond formation is direct and convenient to access bis-(hetero)aryl quinazolines and quinolines
A series of new class of 4-(hetero)aryl-2-piperazino quinazolines were synthesized and assessed for in vitro activity against extracellular promastigotes and intracellular amastigotes of Leishmania donovani. Among the compounds evaluated, compound 4bb and 4cb showed the selectivity index (SI) value > 8.03 and 4.21, respectively, which is promising as compared with sodium stilbogluconate (SSG) and pentamidine