The π–π interactions enhanced in salicylaldimines and salicylaldazines
摘要:
Four new series of salicylaldazines 1 and salicylaldimines 2-4 were prepared, characterized and their mesomorphic properties were studied. The structures of all compounds were identified and confirmed by spectroscopic techniques such as H-1, C-13 NMR, MS and elemental analysis. Three single crystallographic structures of compounds la (n=3, 6) and 2 (n=3) were determined by X-ray analysis in order to correlate the molecular structures with the formation of mesophases. Crystallographic data indicated that the better mesomorphic properties might be controlled by CH-pi, pi-pi or/and H-bonds in such system. Except for crystalline compounds 4, all other compounds 1-3 showed mesomorphic behavior of nematic, smectic A or/and smectic C phases, which were characterized by differential scanning calorimetry, optical polarizing microscope and X-ray diffraction experiments. All compounds 1-4 showed yellow green photoluminescence in THF occurred at 519-521 nm. (C) 2015 Elsevier Ltd. All rights reserved.
The present invention provides, inter alia, compounds capable of inhibiting NF-κB. Pharmaceutical compositions containing and methods of using the compounds are also provided herein.
Coumarin Sulfonamides and Amides Derivatives: Design, Synthesis, and Antitumor Activity In Vitro
作者:Jing Zhang、Yaling Tan、Guorong Li、Lexian Chen、Minyi Nie、Zhaohua Wang、Hong Ji
DOI:10.3390/molecules26040786
日期:——
candidates, a series of coumarin sulfonamides and amides derivatives were designed and synthetized. The majority of these derivatives showed good cytotoxic activity against MDA-MB-231 and KB cell lines, among which compound 9c was the most potent against MDA-MB-231 cells, with IC50 value of 9.33 μM, comparable to 5-fluorouracil. Further investigation revealed that compound 9c had versatile properties against
Molecular modeling and snake venom phospholipase A 2 inhibition by phenolic compounds: Structure–activity relationship
作者:Md. Iqbal Alam、Mohammed A. Alam、Ozair Alam、Amit Nargotra、Subhash Chandra Taneja、Surrinder Koul
DOI:10.1016/j.ejmech.2016.03.008
日期:2016.5
In our earlier study, we have reported that a phenolic compound 2-hydroxy-4-methoxybenzaldehyde from Janakia arayalpatra root extract was active against Viper and Cobra envenomations. Based on the structure of this natural product, libraries of synthetic structurally variant phenolic compounds were studied through molecular docking on the venom protein. To validate the activity of eight selected compounds
Synthesis, characterization, and mesomorphic properties of some new Schiff base homologues series and their Cu(II) complexes
作者:Kiran J. Nakum、Kanubhai D. Katariya、Rajendrasinh N. Jadeja
DOI:10.1080/15421406.2020.1804285
日期:2020.9.1
Abstract In present study, we have synthesized two homologous series of some new Schiff base of 4-n-alkoxy-2-hydroxy benzaldehyde (n = 2–8, 10, 12, 14, 16, 18) with 4-amino acetanilide and their corresponding Cu(II) complexes. A series of new Schiff base containing two aromatic rings have been synthesized and characterized by various spectroanalytical techniques including FT-IR and 1H NMR. The mesomorphic