Direct one-pot synthesis of zolimidine pharmaceutical drug and imidazo[1,2-a]pyridine derivatives via I2/CuO-promoted tandem strategy
作者:Qun Cai、Mei-Cai Liu、Bi-Ming Mao、Xuan Xie、Feng-Cheng Jia、Yan-Ping Zhu、An-Xin Wu
DOI:10.1016/j.cclet.2014.12.016
日期:2015.7
2-a]pyridines from easily available starting materials: Aromatic ketones, α,β-unsaturated ketones, β-keto esters and 2-aminopyridines. The present reaction proceeded well in MeOH under the media of I2/CuO. By using this method, the marketed drug zolimidine could be prepared easily with 95% yield. All these target products were characterized by NMR, HRMS and IR spectra. Furthermore, the target compound 3fa was determined
摘要建立了一种有效的一锅合成方案,用于从容易获得的起始原料:芳族酮,α,β-不饱和酮,β-酮酸酯和2-氨基吡啶合成咪唑并[1,2-a]吡啶。在I 2 / CuO的介质下,本反应在MeOH中进行得很好。通过使用这种方法,可以容易地以95%的收率制备市售药物zolimidine。所有这些目标产物均通过NMR,HRMS和IR光谱进行了表征。此外,通过X射线晶体学分析确定目标化合物3fa。