Synthesis of Unnatural Amino Acids Functionalized with Sterically Shielded Pyrroline Nitroxides

被引:47
作者
Wang, Ying [1 ]
Paletta, Joseph T. [1 ]
Berg, Kathleen [1 ]
Reinhart, Erin [1 ]
Rajca, Suchada [1 ]
Rajca, Andrzej [1 ]
机构
[1] Univ Nebraska, Dept Chem, Lincoln, NE 68588 USA
基金
美国国家科学基金会; 美国国家卫生研究院;
关键词
SPIN-LABEL; DISTANCE MEASUREMENTS; REDUCTION; PROTEINS; KINETICS; PROBES;
D O I
10.1021/ol502449r
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
A series of unnatural amino acids functionalized with sterically shielded pyrroline nitroxides were synthesized. Their reduction by ascorbate/glutathione indicates that l-cysteine functionalized with gem-diethylpyrroline nitroxide is reduced at the slowest rate and is comparable to that measured for the most resistant to reduction pyrroline and pyrrolidine nitroxides.
引用
收藏
页码:5298 / 5300
页数:3
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