2012-7-20 10:49
INTRODUCTION
One challenge facing peptide synthesis is the -lactam formation of arginine (Figure 1). The formation of -lactam occurs when the internal nitrogen of the guanidine attacks the activated ester, irreversibly forming the lactam ring. This reaction is competitive with peptide-bond formation, greatly reducing the coupling efficiency of arginine.
Figure 1: γ-Lactam Formation
The goal of this study was to determine what effect microwave irradiation has on -lactam formation and how to optimize the microwave synthesis of arginine-containing peptides. As a test substrate, we selected the 1992 ABRF study peptide sequence. This sequence is known to suffer from Arg deletion due to -lactam formation.
Liberty 全自动流动微波多肽合成系统
更多详情,请联系培安公司: 电话:北京:010-65528800 上海:021-51086600 成都:028-85127107 广州:020-89609288 Email: sales@pynnco.com 网站:www.pynnco.com
标签:微波合成 多肽合成