The evaluation of the role of C–H⋯F hydrogen bonds in crystal altering the packing modes in the presence of strong hydrogen bond
作者:Gurpreet Kaur、Sandhya Singh、Amritha Sreekumar、Angshuman Roy Choudhury
DOI:10.1016/j.molstruc.2015.10.105
日期:2016.2
found to form strong O–H⋯N hydrogen bond, but the spatial arrangement of the molecules connected by this hydrogen bond have been found to be controlled by the weak C–H⋯F and C–H⋯O hydrogenbonds, weak C–H⋯π and π⋯π interactions. This manuscript illustrates the importance of several weaker interactions in altering the packing modes in the presence of strong hydrogenbonds.
Design, synthesis and biological evaluation of imine resveratrol derivatives as multi-targeted agents against Alzheimer's disease
作者:Su-Yi Li、Xiao-Bing Wang、Ling-Yi Kong
DOI:10.1016/j.ejmech.2013.10.068
日期:2014.1
A series of imine resveratrol derivatives (1-20) have been designed, synthesized, and evaluated as multi-targeted compounds for the treatment of Alzheimer's disease (AD).In vitro studies show that most of the molecules exhibit a significant ability to inhibit self-induced and Cu2+-induced beta-amyloid (A beta(1-42)) aggregation, and to function as potential antioxidants and biometal chelators. In particular, compound 9 is a potential lead compound for AD treatment (for compound 9, IC50 = 14.1 mu M for the antioxidant activity using DPPH free radical method; 64.6% at 20 mu M for self-induced A beta aggregation). Moreover, it is capable of decreasing reactive oxygen species (ROS) induced by Cu-A beta and shows good neuroprotective effects in human SH-SY5Y neuroblastoma cells. Taken together, these results suggest that 9 might be a promising lead compound for AD treatment. (C) 2013 Elsevier Masson SAS. All rights reserved.