Solvent free preparation of N-substituted maleanilic acid
作者:H. Saedi
DOI:10.4314/bcse.v27i1.15
日期:——
Six N-maleanilic acids namely N-(4-carboxy)maleanilic acid (CAMAA), N-(4-bromo)maleanilic acid (BMAA), N-(4-hydroxy)maleanilic acid (HMAA), N-(3-hydroxy)maleanilic acid (mHMAA), N-(4-chloro)maleanilic acid (CMAA) and N-(4-methyl)maleanilic acid (MMAA) were prepared by solvent free reaction between maleic anhydride and a 4-carboxy, 4-bromo, 4-hydroxy, 3-hydroxy, 4-chloro and 4-methyl aniline derivatives in good to excellent yield. FT-IR, 1H-NMR and 13C-NMR spectra revealed the confirmation of these compounds in good agreement.
A facile and economical procedure for the synthesis of maleimide derivatives using an acidic ionic liquid as a catalyst
作者:Kai Li、Chao Yuan、Shijun Zheng、Qiang Fang
DOI:10.1016/j.tetlet.2012.06.025
日期:2012.8
in good yields and high purity from the corresponding maleamic acids using a Brønsted acidic room temperature ionic liquid (RTIL) as a catalyst. The products were obtained through merely a decanting and removal of the solvent, suggesting that this procedure is superior to the conventional routes, in which the strong organic/inorganic acids were used as the catalysts, as well as a complicated post-processing
Synthesis and in Vitro Evaluation of N-Substituted Maleimide Derivatives as Selective Monoglyceride Lipase Inhibitors
作者:Nicolas Matuszak、Giulio G. Muccioli、Geoffray Labar、Didier M. Lambert
DOI:10.1021/jm900461w
日期:2009.12.10
action is quickly terminated via enzymatic hydrolysis catalyzed by monoglyceride lipase (MGL). Regulating its endogenous level could offer therapeutic opportunities; however, few selective MGL inhibitors have been described so far. Here, we describe the synthesis of N-substituted maleimides and their pharmacological evaluation on the recombinant human fatty acid amide hydrolase (FAAH) and on the purified
内源性大麻素2-花生四烯酸甘油酯(2-AG)在许多生理过程中起着重要作用,其作用通过甘油单酯脂肪酶(MGL)催化的酶促水解迅速终止。调节其内源水平可以提供治疗机会;然而,到目前为止,几乎没有描述选择性的MGL抑制剂。在这里,我们描述了N-取代的马来酰亚胺的合成及其对重组人脂肪酸酰胺水解酶(FAAH)和纯化人MGL的药理评价。先前已经描述了一些N-芳基马来酰亚胺(萨里奥(SM);萨洛(OM);Nevalainen,T .;Poso,A。莱蒂宁(JT);贾文恩(T. Jarvinen)Niemi,R.大鼠小脑膜中2-花生四烯酸甘油水解酶中巯基敏感位点的表征。化学 生物学 2005年,12,649-656),为MGL抑制剂,以及沿着这些线路,我们提出一组新的马来酰亚胺衍生物的那显示出低微摩尔的IC 50和朝向MGL VS FAAH高选择性。然后,研究了结构活性关系,例如,1-biphenyl-4
Synthesis and antimicrobial activities of N-substituted imides
作者:Frederic Zentz、Alain Valla、Regis Le Guillou、Roger Labia、Anne-Gabrielle Mathot、Danielle Sirot
DOI:10.1016/s0014-827x(02)01217-x
日期:2002.4
toluene. Most of N-substituted maleimides showed an interesting antimicrobialactivity towards bacteria from the ATCC collection (Staphylococcus aureus ATCC 25923, Enterococcus faecalis ATCC 29212, Escherichia coli ATCC 25922 and Pseudomonas aeruginosa ATCC 27853) but the MIC values for P. aeruginosa were always high (128 microg/ml). The imides with alkyl substituents showed higher activities than aromatic
Process for the production of N-(hydroxyphenyl) maleimides
申请人:Mitsui Toatsu Chemicals, Incorporated
公开号:US04231934A1
公开(公告)日:1980-11-04
N-(hydroxyphenyl) maleimides of the general formula ##STR1## where R' stands for H, CH.sub.3, C.sub.2 H.sub.5, F, Cl, Br or I and n is an integer of 1-5 are produced by treating the corresponding maleamic acid or by treating the ester of said N-(hydroxyphenyl) maleimide at a temperature of 0-150.degree. C. in the presence of at least one dehydrating agent selected from the group consisting of oxides and oxyacids of sulfur or phosphorus and alkali metal and alkaline earth metal salts of the said oxyacids. The corresponding maleamic acid can be obtained by reacting an aminophenol having one or more hydroxyl groups on its phenyl nucleus with maleic anhydride. The esters of the N-(hydroxyphenyl maleimide) can be obtained by reacting said aminophenol and said maleic anhydride in the presence of a conventional acid anhydride dehydrating agent and a conventional imide-forming cyclization catalyst.