Photoinduced Electron-Transfer Reactions with Quinolinic and Trimellitic Acid Imides: Experiments and Spin Density Calculations<sup>1</sup>
作者:Axel G. Griesbeck、Murthy S. Gudipati、Joachim Hirt、Johann Lex、Michael Oelgemöller、Hans Schmickler、Frank Schouren
DOI:10.1021/jo001070r
日期:2000.10.1
products 8. The regioselectivity originates from donor-acceptor interactions prior to electron transfer and differences in spin densities in the corresponding imide radical anions. The results of DFT and abinitiocalculations for the radical anions of the quinolinic acid imide (11(*)(-)) and the methyl ester of trimellitic acid imide (12(*)(-))( )()were in agreement with the latter assumption: spin densities
A variety of omega-substituted alkanoic acid (2-amino-phenyl)-amides were designed and synthesized. These compounds were shown to inhibit recombinant human histone deacetylases (HDACs) with IC50 values in the low micromolar range and induce hyperacetylation of histones in whole cells. They induced expression of p21WAFl/Cip1 and caused cell-cycle arrest in human cancer cells. Compounds in this class showed efficacy in human tumor xenograft models. (C) 2003 Elsevier Ltd. All rights reserved.