Organophosphorus Esters of 1-Hydroxy-2-phenylbenzimidazole: Synthesis and Utilization as Novel Peptide Coupling Reagents
作者:Devanand Shinde、Nagnnath Kokare、Rahul Nagawade、Vipul Rane
DOI:10.1055/s-2007-965918
日期:2007.3
Highly efficient coupling reagents - phosphoric acid diethyl ester 2-phenylbenzimidazol-1-yl ester, diphenylphosphinic acid 2-phenylbenzimidazol-1-yl ester and phosphoric acid diphenyl ester 2-phenylbenzimidazol-1-yl ester-were designed, synthesized and successfully applied in peptide coupling reactions. Their efficiency was evaluated through the synthesis of a range of amides and peptides, and the extent
设计、合成了高效偶联试剂——磷酸二乙酯2-苯基苯并咪唑-1-酯、二苯基次膦酸2-苯基苯并咪唑-1-酯和磷酸二苯酯2-苯基苯并咪唑-1-酯并成功应用于肽偶联反应。通过合成一系列酰胺和肽来评估它们的效率,并通过 HPLC 研究外消旋化程度,发现可以忽略不计。作用机制可能与对羟基苯并三唑的有机磷酯的作用机制相似:通过质谱和 1 H NMR 对一些建议的中间体进行分离和表征支持了这一假设。