在本研究中,我们已努力开发具有增强功效的新型合成抗氧化剂和抗菌剂。新型的苯并呋喃聚集的C -2,4,6-取代的嘧啶衍生物5a,5b,5c,5d,5e,5f,6a,6b,6c,6d,6e,6f,7a,7b,7c,7d,7e,7f,8a,8b,8c,8D,8E,8F,图9a,图9b,图9c,图9d,图9e,9f中通过简单和有效的四步反应途径进行合成。最初,经叔碳酸钾处理后,水杨醛的o-烷基衍生物很容易以高收率提供相应的2-乙酰基苯并呋喃2。分子筛存在下的丁醇盐。此外,通过硫脲处理,克莱森-施密特与芳族醛缩合,然后与不同的磺酰氯偶联反应,得到目标化合物。通过IR,1 H NMR,13 C NMR,质量和元素分析确认了新合成的化合物的结构,并进一步筛选了它们的抗氧化剂和抗菌活性。结果表明,合成的化合物8b,8e,9b和9e产生了显着的抗氧化活性,抑制浓度比参考浓度高50%,而化合物7d和7c 与庆大霉素和制霉菌素相比,它们在1
Amidinohydrazone vom Benzo(b)furan abgeleiteter Ketone, Verfahren zu deren Herstellung und diese Verbindungen enthaltende Arzneimittel
申请人:Helopharm G. Petrik GmbH
公开号:EP0778274A1
公开(公告)日:1997-06-11
Beschrieben sind neue Amidinohydrazone vom Benzo[b]furan abgeleiteter Ketone der allgemeinen Formel I
und deren pharmazeutisch annehmbare Salze, ein Verfahren zu ihrer Herstellung und diese Verbindungen enthaltende Arzneimittel.
Die beschriebenen Verbindungen zeigen verbesserte Klasse III-antiarrhythmische Wirkungen.
由通式 I 苯并[b]呋喃衍生的酮类新脒基吡嗪
及其药学上可接受的盐、制备方法和含有这些化合物的药物。
所述化合物具有更好的 III 类抗心律失常作用。
Substituted Benzothiophene or Benzofuran Derivatives as a Novel Class of Bone Morphogenetic Protein-2 Up-Regulators: Synthesis, Structure−Activity Relationships, and Preventive Bone Loss Efficacies in Senescence Accelerated Mice (SAMP6) and Ovariectomized Rats
In this work, substituted benzothiophene and benzofuran compounds were found to be a new class of potential anabolic agents by enhancing BMP-2 expression. A series of benzothiophene and benzofuran derivatives have been synthesized, and their activities of up-regulating BMP-2 and bone loss prevention efficacies in SAMP6 mice and OVX rats have been studied. Benzothiophenes 1, 3, 14, 4a, 7a, 8a, and benzofuran analogue 2 showed higher BMP-2 up-regulation rates in vitro. Compound 8111 was found to significantly affect the bone formation rate of tested SAMP6 mice. Compound I showed an improved bone quality in SAMP6 mice and also showed activity in OVX rats. We have demonstrated that Substituted benzothiophene and benzofuran derivatives, especially compounds I and 8a, enhance BMP-2 expression in vitro and in vivo and stimulate bone formation and trabecular connectivity restoration ill vivo. The compounds represent potential leads in the development of a new class of anabolic agents.
Microwave assisted synthesis of new indophenazine 1,3,5-trisubstruted pyrazoline derivatives of benzofuran and their antimicrobial activity
作者:Kuntal Manna、Yadvendra K. Agrawal
DOI:10.1016/j.bmcl.2009.03.161
日期:2009.5
2-[1-(5,8-Dihydro quinoxalino[2,3-b]indoloacetyl)-3-(1-benzofuran-2-yl)-4,5-dihydro-1H-pyrazol-5-yl] phenyl derivatives were synthesized from 2-(5,8-dihydro quinoxalino[2,3-b]indol-5-yl) acetohydrazide and (2E)-1-(1-benzofuran-2-yl)-4-phenylbut-2-en-1-ones derivatives using microwave-assisted route. The structures of all the compounds have been established on the basis of analytical and spectral data. Among the 14 compounds IPB-1, IPB-5, IPB-10, IPB-11 and IPB-12 were found good antibacterial activity and MICs were found bellow 10 mu g/mL against Escherichia coli, Pseudomonas aeruginosa and Streptococcus aureus, which can compared with sparfloxacin and norfloxacin. (C) 2009 Elsevier Ltd. All rights reserved.
Polonovski et al., Bulletin de la Societe Chimique de France, 1953, p. 200,202
作者:Polonovski et al.
DOI:——
日期:——
3-(Substituted Aryl)-1-(benzofuran-2-yl)-2-propenones, Part 1: Synthesis and Characterization of Some Novel Chalcones
作者:Demet Coşkun、Misir Ahmedzade
DOI:10.1080/00397910802178997
日期:2008.10.22
Synthesis and characterization of some novel chalcones by condensation of 2-acetylbenzofurane and various aromatic aldehydes is described.