作者:Tadashi Furukawa、Takashi Akutagawa、Hitomi Funatani、Toshikazu Uchida、Yoshihiro Hotta、Masatake Niwa、Yoshiaki Takaya
DOI:10.1016/j.bmc.2012.01.050
日期:2012.3
Twenty kinds of cyclic dipeptides containing L-leucine were synthesized, and their antioxidant activity against (OH)-O-center dot and O-2(center dot-) was investigated. Compounds possessing polar amino acid residues, such as Asp, Cys, Glu, Lys, Pro, Ser, and Trp, exhibited higher antioxidant activity against (OH)-O-center dot than vitamin E. However, only cyclo(L-Cys-L-Leu) scavenged O-2(center dot-). (C) 2012 Elsevier Ltd. All rights reserved.