steric hindrance in hydroxyalkyl esters, and intramolecular interactions in bis-aryl esters. Regarding the two bis-aryl esters series in emulsion, the antioxidant capacity was improved with alkyl chain lengthening up to four carbons, after which it decreased for longer chains. This “cutoff” effect was not observed for both hydroxyalkyl esters series for which the alkyl chain lengthening results in a decrease
Bio-inspired benzo[k,l]xanthene lignans: synthesis, DNA-interaction and antiproliferative properties
作者:Carmela Spatafora、Vincenza Barresi、Vedamurthy M. Bhusainahalli、Simone Di Micco、Nicolò Musso、Raffaele Riccio、Giuseppe Bifulco、Daniele Condorelli、Corrado Tringali
DOI:10.1039/c3ob42521e
日期:——
In this work twelve benzo[k,l]xanthenelignans were synthesized by biomimetic, Mn-mediated oxidative coupling of caffeic esters and amides. These compounds, bearing different flexible pendants at position C1/C2 of the aromatic core, interact with DNA in a dual mode, as confirmed by DF-STD NMR analysis and molecular docking: the planar core acts as a base pair intercalant, whereas the flexible pendants