Discovery of 9,10-Dihydroacridines as Novel Class of ABCB1 Inhibitors
作者:Andreas Hilgeroth、Marc Hemmer、Sebastian Neuber、Josef Molnar、Hermann Lage
DOI:10.2174/1573406410666141111100720
日期:2015.4.29
Nonplanar 9,10-dihydroacridines were synthesized as promising C2 symmetric molecular scaffolds as inhibitors of the transmembrane efflux pump ABCB1. Within the series structure-activity relationships are discussed revealing the importance of hydrogen bond acceptor functions. A selectivity of ABCB1 inhibition is demonstrated for selected candidates and a bioanalytical study proved nontoxicity as well
various reactions involving electron pairs. However, it was found that ylides resulting from deprotonation of N-alkyl-substituted pyridinium salts exhibit radical characters, with no discernable NMR signals but decent EPR spectra in both solution and the solidstate. An observed correlation between lowered π* energy level of the pyridinium ring and increased EPR activity indicates that thermally induced