An Fmoc-compatible method for synthesis of peptides containing photocaged aspartic acid or glutamic acid
作者:Shan Tang、Jing-Yuan Cheng、Ji-Shen Zheng
DOI:10.1016/j.tetlet.2015.06.016
日期:2015.7
A new method compatible with 9-fluorenylmethoxycarbonyl (Fmoc) solid phase peptide synthesis (SPPS) was developed to synthesize photocaged peptides carrying the photosensitive 4-methoxy-7-nitroindoline (MNI) group on the side chain of aspartic acid (Asp) and glutamic acid (Glu). The caged building blocks, Fmoc-Asp(MNI)-OH and Fmoc-Glu(MNI)-OH, could be readily synthesized on multi-gram scale. An important
开发了一种与9-芴基甲氧基羰基(Fmoc)固相肽合成(SPPS)兼容的新方法,以合成在天冬氨酸(Asp)和谷氨酸侧链上带有光敏4-甲氧基-7-硝基二氢吲哚(MNI)基团的光笼肽酸(Glu)。笼状结构单元Fmoc-Asp(MNI)-OH和Fmoc-Glu(MNI)-OH可以很容易地以克为单位进行合成。新方法的一个重要优点是,MNI基团可防止Fmoc SPPS期间氨基琥珀酰副产物和吡咯烷酮的形成,并具有快速的光解动力学。因此,我们的方法为肽和蛋白质在侧链羧基上的光固结提供了一种有用的方法。