New series of sulfonamide derivatives containing a dihydropyrazole moieties inhibitors of MMP-2/MMP-9 were discovered using structure-based drug design. Synthesis, antitumor activity, structure-activity relationship and optimization of physicochemical properties were described. In vitro the bioassay results revealed that most target compounds showed potent inhibitory activity in the enzymatic and cellular assays. Among the compounds, compound 3i exhibited the most potent inhibitory activity with IC50 values of 0.21 mu M inhibiting MMP-2 and 1.87 mu M inhibiting MMP-9, comparable to the control positive compound CMT-1 (1.26 mu M, 2.52 mu M). Docking simulation was performed to position compound 3i into the MMP-2 active site to determine the probable binding pose. Docking simulation was further performed to position compound 3i into the MMP-2 active site to determine the probable binding model the 3D-QSAR models were built for reasonable design of MMP-2/MMP-9 inhibitors at present and in future. (C) 2015 Elsevier Ltd. All rights reserved.
Synthesis and biological effects of naphthalene-chalcone derivatives
In this paper, 21 naphthalene-chalcone derivatives were synthesized and their biologicaleffects were evaluated. The results showed that compounds 2a–2u displayed clear antidepressant activity at 30 mg/kg in the forced swimming test. Compounds 2h, 2o, 2t, and 2u exhibited a good antidepressant effect in the forced swimming test and tail suspension test at 30 mg/kg. Compounds 2h, 2o, 2t, and 2u but
Palladium-catalyzed direct intramolecular double α-C–H arylation of 1,5-diketone: a strategy for synthesis of Tröger’s base analogues
作者:Jia Ju、Lei Zhang、Ruimao Hua
DOI:10.1016/j.tetlet.2014.04.069
日期:2014.5
9-Aryl-2,3:6,7-dibenzobicyclo[3.3.1]nona-2,6-diene-4,8-diones were straightforwardly prepared via a tandem reaction of easily available ortho-chloroacetophenone and ortho-chlorochalcone catalyzed by PdCl2(PCy3)2.