Synthesis, 3D-pharmacophore modelling and 2D-QSAR study of new pyridine-3-carbonitriles as vasorelaxant active agents
作者:Aladdin M. Srour、Dina H. Dawood、Dalia O. Saleh
DOI:10.1039/d0nj06319c
日期:——
A new set of pyridine-3-carbonitriles (3a–v) conjugated with various five-membered ring systems at pyridinyl C-6 were designed and synthesized as vasorelaxant active agents.
Supported TBD-Assisted Solution Phase Diversification of Formyl-Aza-Heterocycles Through Alkylation-Knoevenagel One Pot Sequences
作者:Abdelaziz El Maatougui、Abel Crespo、Artur M.S. Silva、Alberto Coelho
DOI:10.2174/138620711796367229
日期:2011.8.1
An efficient solution-phase parallel procedure to perform the structural diversification of some formyl-nitrogen heterocycles (A) using the reusable TBD supported base is described. The library synthesis is based in a consecutive Alkylation-Knoevenagel functionalisation that uses alkyl halides (B), Michael acceptors (C) and activated methylene compounds (D) as diversity elements.
New pyridine and chromene scaffolds as potent vasorelaxant and anticancer agents
作者:Dina H. Dawood、Aladdin M. Srour、Dalia O. Saleh、Kelley J. Huff、Francesca Greco、Helen M. I. Osborn
DOI:10.1039/d1ra04758b
日期:——
the experimental compounds at 10 μM on the MCF-7 and MDA-MB 231 breast cancer cell lines illustrated the excellent anti-proliferative properties of derivatives 3d, 3g and 3i. Compound 3d was the most potent analogue with IC50 = 4.55 ± 0.88 and 9.87 ± 0.89 μM against MCF-7 and MDA-MB 231, respectively. Moreover, compound 3d stimulated apoptosis and cell cycle arrest at the S phase in MCF-7 cells in addition
charge transfer characteristics. The dyes showed solid state emission and emission in solid state was red shifted as compared to their emission in less polar solvents. Density Functional Theory [B3LYP/6–311 + G(d)] computations were used to correlate the structural, molecular, electronic and photo physical parameters of styryl dye with experimental study. Synthesized dyes were confirmed by using FT-IR, 1H
通过N-乙基吲哚-3-甲醛与不同活性亚甲基化合物的Knoevenagel缩合反应合成了基于吲哚核的供体-π-受体苯乙烯基发色团。研究了这些染料在不同溶剂中的吸收和发射特性。染料在397至469 nm之间的紫外和可见光区域显示出较宽的最大吸收,FWHM为50至75 nm。由于扩展的π-共轭体系,该苯乙烯基生色团显示出强大的分子内电荷转移特性。染料表现出固态发射,并且与在极性较小的溶剂中的发射相比,固态发射呈红移。使用密度泛函理论[B3LYP / 6–311 + G(d)]计算将苯乙烯染料的结构,分子,电子和光物理参数与实验研究相关联。1 H NMR,13 C NMR和HRMS光谱分析。