Preformed Selenoesters Enable Rapid Native Chemical Ligation at Intractable Sites
作者:Thomas Durek、Paul F. Alewood
DOI:10.1002/anie.201105512
日期:2011.12.9
Pro–Cys ligation using a preformed prolyl selenoester is reported (see scheme; P=peptide). In a comparative study of peptide selenoesters in native chemical ligation peptide α‐selenoesters are shown to be superior acyl donors and result in rate enhancements of at least two orders of magnitude when compared to the well‐established peptide α‐thioesters. This method permits rapid chemical ligation even at
转为亲:报道了使用预制的脯氨酰硒酸酯的第一个简便的Pro-Cys连接(请参阅方案; P =肽)。在天然化学连接中进行的肽硒酸酯的比较研究表明,与成熟的肽α-硫酯相比,肽α-硒酸酯是优异的酰基供体,其速率提高至少两个数量级。即使在以前难以治疗的部位,例如Pro-Cys,该方法也可以进行快速化学连接。