Functionalized aurones as inducers of NAD(P)H:quinone oxidoreductase 1 that activate AhR/XRE and Nrf2/ARE signaling pathways: Synthesis, evaluation and SAR
作者:Chong-Yew Lee、Eng-Hui Chew、Mei-Lin Go
DOI:10.1016/j.ejmech.2010.03.023
日期:2010.7
The chemopreventive potential of functionalized aurones and related compounds as inducers of NAD(P) H:quinone oxidoreductase 1 (NQO1, EC 1.6.99.2) are described. Several 4,6-dimethoxy and 5-hydroxyaurones induced NQO1 activity of Hepa1c1c7 cells by 2-fold at submicromolar concentrations, making these the most potent inducers to be identified from this class. Mechanistically, induction of NQO1 was mediated by the activation of AhR/XRE and Nrf2/ARE pathways, indicating that aurones may be mixed activators of NQO1 induction or agents capable of exploiting the proposed cross-talk between the AhR and Nrf2 gene batteries. QSAR analysis by partial least squares projection to latent structures (PLS) identified size parameters, in particular those associated with non-polar surface areas, as an important determinant of induction activity. These were largely determined by the substitution on rings A and B. A stereoelectronic role for the exocyclic double bond as reflected in the E-LUMO term was also identified. The electrophilicity of the double bond or its effect on the conformation of the target compound are possible key features for induction activity. (c) 2010 Elsevier Masson SAS. All rights reserved.
Barbier, Michel, Liebigs Annalen der Chemie, 1987, p. 545 - 546
作者:Barbier, Michel
DOI:——
日期:——
BARBIER, MICHEL, LIEBIGS ANN. CHEM.,(1991) N, C. 7623-7626
作者:BARBIER, MICHEL
DOI:——
日期:——
Isoaurones: synthesis and stereochemical assignments of geometrical isomers
作者:Somepalli Venkateswarlu、Gopala K. Panchagnula、Mothukuri Bala Guraiah、Gottumukkala V. Subbaraju
DOI:10.1016/j.tet.2006.08.048
日期:2006.10
synthesized for the first time from substituted acetophenones via benzo-2(3H)-furanone in three steps. Geometricalisomers of the isoaurones were separated. The differences in the proton and carbon NMR spectra of the E- and Z-isoaurones afford a useful method for distinguishing between the two isomers. Marginalin, a metabolite of Dytiscus marginalis has been synthesized and the spectral data of the synthetic