of the Backbone Amide Linker (BAL) approach has been developed for Nα-Fmoc solid-phase synthesis (SPS) of C-terminal modified peptides; this provides a convenient route to peptides containing prolyl, N-alkylamino acyl, or histidyl derivatives at the C-terminus. To illustrate the principles, several model peptides were prepared in high yields and excellent purities; diketopiperazines and racemized byproducts
                                    所述的一种新的变异乙ackbone甲酰胺大号墨辊(BAL)的方法已被开发用于Ñ α -Fmoc固相合成C-末端修饰的肽的(
SPS); 这为在C端含有脯
氨酰基,N-烷基
氨基酰基或组
氨酸衍
生物的肽提供了便利的途径。为了说明原理,以高收率和优异的纯度制备了几种模型肽。本文报道的合成中不存在二酮
哌嗪和外消旋副产物,当使用替代方法时否则会形成二酮
哌嗪。