A series of fused 6,6-bicyclic chromenones was investigated for activity against the bradykinin B1 receptor. SAR studies based on a pharmacophore model revealed compounds with high affinity for both human and rabbit B1. These compounds demonstrated favorable pharmacokinetic properties and 5-chlorochromenone 15 was efficacious in a carrageenan-induced mechanical hyperalgesia model for chronic pain. (C) 2011 Elsevier Ltd. All rights reserved.
A series of fused 6,6-bicyclic chromenones was investigated for activity against the bradykinin B1 receptor. SAR studies based on a pharmacophore model revealed compounds with high affinity for both human and rabbit B1. These compounds demonstrated favorable pharmacokinetic properties and 5-chlorochromenone 15 was efficacious in a carrageenan-induced mechanical hyperalgesia model for chronic pain. (C) 2011 Elsevier Ltd. All rights reserved.
Synthesis and antitumor activity of novel dithiocarbamate substituted chromones
作者:Wei Huang、Yu Ding、Yan Miao、Ming-Zhen Liu、Yan Li、Guang-Fu Yang
DOI:10.1016/j.ejmech.2009.04.004
日期:2009.9
A series of chromone derivatives bearing diverse dithiocarbamate moieties were designed and synthesized via a three-component reaction protocol. Their in vitro antitumor activities were evaluated by MTT method against HCCLM-7, Hela, MDA-MB-435S, SW-480, Hep-2 and MCF-7. Two compounds (3-chloro-4-oxo-4H-chromen-2-yl)methyl piperidine-1-carbodithioate (Iq) and (6-chloro-4-oxo-4H-chromen-3-yl)methyl
The synthesis of 3-(1H-imidazol-1-yl)-4H-1-benzopyran-4-ones 2 and of 2-(1H-imidazol-1-yl)-4H-1-benzopyr-an-4-ones 11 are described. The former proceeds through chromanring closure from 2-(1H-imidazol-1-yl)-2′-hydroxyacetophenones, the latter occurs reacting 3-bromo-4H-1-benzopyran-4-ones with imidazole and represents an example of a new synthesis of 2-heteroarylchromones. Compounds 2 can be easily
3-(1 H-咪唑-1-基)-4 H -1-苯并吡喃-4-酮2和2-(1 H-咪唑-1-基)-4 H -1-苯并吡喃-an的合成-4-一11被描述。前者通过2-(1 H-咪唑-1-基)-2'-羟基苯乙酮的苯并二氢吡喃环封闭而进行,后者发生的是使3-溴-4 H -1-苯并吡喃-4-酮与咪唑反应,这是一个例子。 2-杂芳基色酮的新合成方法。化合物2可以很容易地还原为先前在第1部分中描述的相应的苯并二氢吡喃酮和苯并二氢吡喃醇。
Stille coupling for the synthesis of isoflavones by a reusable palladium catalyst in water
Isoflavones were synthesized from the reaction of 3‐bromochromone derivatives and aryltributylstannanes via Stillecoupling catalyzed by a water‐soluble and reusable PdCl2(NH3)2/2,2′‐cationic bipyridyl system in aqueous solution. For prototype 3‐bromochromone, the coupling reaction was performed at 80°C for 24 hr with 2.5 mol% catalyst in water in the presence of tetrabutylammonium fluoride. After
Synthesis of 3-halochromones with simple KX halogen sources enabled by <i>in situ</i> halide oxidation
作者:Yan Lin、Jie-Ping Wan、Yunyun Liu
DOI:10.1039/d0nj00825g
日期:——
On the basis of a designated in situ oxidation tactic, the synthesis of 3-halochromones has been realized for the first time by using simple KX (X = Br, I) salts as halogen sources. Instead of the free radical process, the control experiments indicate that the reported reactions proceed through a halogenium intermediate. Compared to the known synthetic methods relying on molecular halogen, haloid acid
Photoredox Functionalization of 3-Halogenchromones, 3-Formylchromones, and Chromone-3-carboxylic Acids: Routes to 3-Acylchromones
作者:Satenik Mkrtchyan、Viktor O. Iaroshenko
DOI:10.1021/acs.joc.0c00537
日期:2020.6.5
describes a set of new and efficient syntheticroutes toward 3-acyl-substituted chromones ranging from readily available chromone precursors, namely 3-halogenchromones, 3-formylchromones, and chromone-3-carboxylic acids by means of visible-light photoredox catalysis. The operationally simple protocols transform a wide variety of chromone derivatives into challenging 3-acyl-substituted chromones in excellent