Synthesis and anti-inflammatory activity of benzophenone analogues
摘要:
A series of substituted benzophenone analogues has been synthesized and evaluated as orally active anti-inflammatory agents with reduced side effects. The anti-inflammatory and ulcerogenic activities of the compounds were compared with naproxen, indomethacin, and phenylbutazone. In carrageenan-induced foot pad edema assay, benzophenone analogues showed an interesting anti-inflammatory activity. In the air-pouch test, some of the analogues reduced the total number of leukocytes of the exudate, which indicates inhibition of prostaglandin production. Side effects of the compounds were examined on gastric mucosa, in the liver and stomach. None of the compounds showed significant side effects compared with nonsteroidal anti-inflammatory drugs such as indomethacin and naproxen. (C) 2004 Elsevier Inc. All rights reserved.
Fries rearrangement of substituted phenyl benzoates 1a-j to substituted hydroxy benzophenones 2a-j was achieved in excellent yield. Further benzoylation of 2a-j to benzoyloxy benzophenones 4a-n, a benzophenone analogue was achieved in good yield. All the newly synthesized compounds were evaluated for their anti-inflammatory activity and were compared with standard drugs. Out of the compounds studied
Convenient Synthesis of Benziodazolone: New Reagents for Direct Esterification of Alcohols and Amidation of Amines
作者:Michael T. Shea、Gregory T. Rohde、Yulia A. Vlasenko、Pavel S. Postnikov、Mekhman S. Yusubov、Viktor V. Zhdankin、Akio Saito、Akira Yoshimura
DOI:10.3390/molecules26237355
日期:——
Hypervalent iodine heterocycles represent one of the important classes of hypervalent iodine reagents with many applications in organic synthesis. This paper reports a simple and convenientsynthesis of benziodazolones by the reaction of readily available iodobenzamides with m-chloroperoxybenzoic acid in acetonitrile at room temperature. The structure of one of these new iodine heterocycles was confirmed
高价碘杂环代表了一类重要的高价碘试剂,在有机合成中有许多应用。本文通过容易获得的iodobenzamides与反应报告benziodazolones的简单且方便的合成米氯过氧苯甲酸在室温下,在乙腈中。这些新的碘杂环之一的结构通过 X 射线分析得到证实。与 PPh 3和吡啶结合,这些苯并咪唑酮可以顺利地与醇或胺反应,分别生成相应的 3-氯苯甲酸酯或酰胺。发现在该酯化反应中,新型苯并碘酮试剂比类似的苯并恶酮试剂反应更有效。
Heterogeneous catalysis by solid superacids. 17. Polymeric perfluorinated resin sulfonic acid (Nafion-H) catalyzed Fries rearrangement of aryl esters
作者:George A. Olah、Massoud Arvanaghi、V. V. Krishnamurthy
DOI:10.1021/jo00167a052
日期:1983.9
Chloro Substituted Diphenylmethanes, Phenyl Benzyl Ethers and Benzophenones Prepared from Ortho- or Para-cresol<sup>1,2</sup>
作者:Ralph C. Huston、Kenneth R. Robinson
DOI:10.1021/ja01150a022
日期:1951.6
OLAH, G. A.;ARVANAGHI, MASSOUD;KRISHNAMURTHY, V. V., J. ORG. CHEM., 1983, 48, N 19, 3359-3360
作者:OLAH, G. A.、ARVANAGHI, MASSOUD、KRISHNAMURTHY, V. V.