Petrova KV, Stec DF, Voehler M, Rizzo CJ. Synthesis of the four stereoisomers of 2,3-epoxy-4-hydroxynonanal and their reactivity with deoxyguanosine.
Org Biomol Chem 2011;
9:1960-71. [PMID:
21258716 DOI:
10.1039/c0ob00546k]
[Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
2,3-Epoxy-4-hydroxynonanal (EHN) is a potential product of lipid peroxidation that gives rise to genotoxic etheno adducts. We have synthesized all four stereoisomers of EHN and individually reacted them with 2'-deoxyguanosine. In addition to 1,N(2)-etheno-2'-deoxyguanosine, 12 stereoisomeric products were isolated and characterized by (1)H NMR and circular dichroism spectroscopy. The stereochemical assignments were consistent with selective NOE spectra, vicinal coupling constants, and molecular mechanics calculations. Reversed-phase HPLC conditions were developed that could separate most of the adduct mixture.
Collapse