Kumar, Padam Praveen; Reddy, Y. Dathu; Kumari, Y. Bharathi, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 2014, vol. 53, # 4, p. 392 - 398
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.
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
Substituent chemical shifts of<i>N</i>-arylsuccinanilic acids,<i>N</i>-arylsuccinimides,<i>N</i>-arylmaleanilic acids, and<i>N</i>-arylmaleimides
作者:Hye Sun Lee、Ji Sook Yu、Chang Kiu Lee
DOI:10.1002/mrc.2450
日期:2009.9
NMR spectra of a series of N-arylsuccinanilic acids, N-arylsuccinimides, N-arylmaleanilicacids, and N-arylmaleimides were examined to estimate the electronic effect of the amide and imide groups on the chemicalshifts of the hydrogen and carbon nuclei of the benzene ring.
The synthesis, in vitro evaluation and SAR studies of 67 maleimides and derivatives acting as antifungal agents are reported. A detailed SAR study supported by theoretical calculations led us to determine that: an intact maleimido ring appears to be necessary for a strong antifungal activity, dissimilarly affected by the substituents in positions 2 and 3. The best activities were shown by 2,3-nonsubstituted
Substituent effects on the regioselectivity of maleamic acid formation and hydrogen chloride addition to N-aryl maleimides
作者:YELİZ FATURACI、NECDET COŞKUN
DOI:10.3906/kim-1203-34
日期:——
Itaconic anhydride reacts with aryl amines to give a substituent controlled equilibrium mixture of regioisomeric (Z)-2-methyl- and (Z)-3-methyl-4-oxo-4-(arylamino)but-2-enoic acids. Electron-donating groups favor nucleophilic attack on C-5 carbonyl, while the presence of electron-withdrawing groups enhances the bias for attack on C-2 carbonyl. The treatment of (Z)-2-methyl- and (Z)-3-methyl-4-oxo-4-(arylamino)but-2-enoic acids with SOCl_2-Et_3N in THF provided the corresponding maleimides in high yields while under the same conditions the maleic anhydride aryl amine addition products gave predominately the corresponding 3-chloro-1-arylpyrrolidine-2,5-diones and maleimides in substituent dependent ratio.