Efficient Synthesis of 4-Hydroxybenzo[<i>h</i>]Quinoline-2(1<i>H</i>)-One and Some Derivatives
作者:E.O. Moradi Rufchahi、M. Pourbabaea
DOI:10.3184/174751916x14599583786239
日期:2016.5
1-naphthylamine with diethyl malonate under reflux. These two compounds were then separately cyclised to 4-hydroxybenzo[h]quinolin-2-(1H)-one in two different reactions in polyphosphoric acid. A series of esters and ethers of the 4-hydroxy group and some 3-substituted derivatives were prepared. The structures of the compounds were confirmed by infra-red NMR spectroscopy and elemental analysis.
Bridged polycyclic lactams are important structural units in organic functional materials, natural products, and pharmaceuticals. A flexible and efficient anion cascade reaction was developed for the preparation of bridged polycyclic lactams from readily available malonamides and 1,4‑dien-3-ones. Various highly substituted bridged polycyclic lactams were synthesized in good to excellent yields by tandem
桥连多环内酰胺是有机功能材料、天然产物和药物中的重要结构单元。开发了一种灵活高效的阴离子级联反应,用于从容易获得的丙二酰胺和 1,4-二烯-3-酮制备桥联多环内酰胺。在t BuOK 存在下,在市售 EtOH 溶剂中,在 60 °C 下,通过串联亲核序列以良好至优异的产率合成了各种高度取代的桥联多环内酰胺。值得注意的是,简单的反应可以在克规模上进行。从机理上讲,双迈克尔加成反应和半胺化反应参与串联转化。
Ligand-based modelling followed by synthetic exploration unveil novel glycogen phosphorylase inhibitory leads
作者:Maha Habash、Mutasem O. Taha
DOI:10.1016/j.bmc.2011.06.086
日期:2011.8
Glycogen phosphorylase (GP) is a valid anti-diabetic target. Accordingly, we applied a drug discovery workflow to unveil novel inhibitory GP leads via combining pharmacophore modeling, QSAR analysis and in silico screening, followed by synthetic exploration of active hits. Virtual screening identified six low micromolar inhibitory leads from the National Cancer Institute (NCI) list of compounds. The most potent hits exhibited anti-GP IC50 values of 3.2 and 4.1 mu M. Synthetic exploration of hit 59 (IC50 = 4.1 mu M) yielded 25 lead inhibitors with the best illustrating IC50 of 3.0 mu M. Interestingly, we prepared several novel mixed oxalyl amide anti-GP leads employing new chemical reaction involving succinic acid-based adducts. (C) 2011 Elsevier Ltd. All rights reserved.
BRAEUNIGER; STENS, Pharmazie, 1963, vol. 18, p. 585 - 600
作者:BRAEUNIGER、STENS
DOI:——
日期:——
Whiteley, Journal of the Chemical Society, 1903, vol. 83, p. 43