Journal
TETRAHEDRON LETTERS
Volume 45, Issue 5, Pages 1043-1045Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2003.11.074
Keywords
PBN; superoxide; spin trapping; cyclodextrins; electron spin resonance
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In phosphate buffer solution the half-life of the PBN-Superoxide spin adduct is very short. However, as a result of the formation of inclusion complexes, its ESR signal was easily detected for up to 25 min when the trapping of superoxide anion with PBN was carried Out in the presence of different cyclodextrins. Furthermore, the formation of these inclusion complexes results in a significant protection of the PBN-superoxide adduct against L-ascorbate monoanion reduction. (C) 2003 Elsevier Ltd. All rights reserved.
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