A Convenient, Short Synthesis of Desethylchloroquine [7-Chloro-4-(4’-ethylamino-1’-methyl-butylamino)quinoline]
作者:Aslam M. Ansari、J. Cymerman Craig
DOI:10.1055/s-1995-3886
日期:1995.2
A short, efficient 2-step synthesis of desethylchloroquine is achieved by generating an internal amide ion from the secondary nitrogen in chloroquine, followed by in situ reaction with 2,2,2-trichloroethyl chloroformate giving rapid elimination of ethylene. The carbamate thus produced easily undergoes deprotection to the target compound at room temperature.
一种简短、高效的两步合成去乙基氯喹的方法是通过从氯喹的二级氮生成内酰胺离子,然后与2,2,2-三氯乙基氯甲酸酯发生原位反应,迅速消除乙烯。由此生成的氨基甲酸酯在室温下容易脱保护形成目标化合物。