作者:Wayne Vuong、Fabricio Mosquera-Guagua、Randy Sanichar、Tyler R. McDonald、Oliver P. Ernst、Lei Wang、John C. Vederas
DOI:10.1021/acs.orglett.9b04216
日期:2019.12.20
Spin-labeled amino acids (SLAAs) are often used to determine intermolecular distances and conformations in proteins via double electron-electron resonance. Currently available SLAAs can be difficult to incorporate selectively and have little resemblance to natural side chains in proteins. Enantioselective synthesis of three spin-labeled l-amino acids is described, starting from readily available 2
自旋标记氨基酸(SLAA)通常用于通过双电子-电子共振确定分子间的距离和蛋白质构象。当前可用的SLAA可能难以选择性地掺入并且与蛋白质中的天然侧链几乎没有相似之处。从容易获得的2,2,6,6-四甲基-4-哌啶酮开始,描述了三种自旋标记的1-氨基酸的对映选择性合成。这些SLAA可以更好地复制蛋白质中的规范残基,并旨在通过遗传掺入或固相肽合成进行生物学掺入。