A novel acid-catalyzed rearrangement of 2-substituted-3-(2-nitrophenyl)oxiranes for the synthesis of di- and mono-oxalamides
作者:Vakhid A. Mamedov、Vera L. Mamedova、Gul'nas Z. Khikmatova、Ekaterina V. Mironova、Dmitry B. Krivolapov、Olga B. Bazanova、Denis V. Chachkov、Sergey A. Katsyuba、Il'dar Kh Rizvanov、Shamil K. Latypov
DOI:10.1039/c6ra02586b
日期:——
novel one-pot synthetic approach to N1-(2-carboxyaryl)-N2-(aryl or H)oxalamides from3-(2-nitroaryl)oxirane-2-carboxamides via the classical Meinwald rearrangement and a new rearrangement sequence has been developed. The methodology is applicable to the synthesis of N-(2-carboxyphenyl)aryloxalmonoamides from (3-(2-nitrophenyl)oxiran-2-yl)(aryl)methanones. The method is operationally simple and high yielding
New and efficient synthesis of 3-arylquinazolin-4(1H)-ones and biologically important N-fused tetracycles based on N-(2-carboxyphenyl)oxalamide
作者:Vakhid A. Mamedov、Vera L. Mamedova、Victor V. Syakaev、Aidar T. Gubaidullin、Julia K. Voronina、Temur A. Kushatov、Dmitry E. Korshin、Aida I. Samigullina、Ekaterina G. Tanysheva、Il'dar Kh. Rizvanov、Shamil K. Latypov
DOI:10.1016/j.tetlet.2021.153327
日期:2021.10
A novel clean, one-pot syntheses of 3-arylquinazolin-4(3H)-ones and quinoxalino[2,1-b]quinazoline-6,12(5H)-diones via PPA-mediated coupling of N-(2-carboxyphenyl)oxalamides with arylamines and 1,2-benzenediamines have been developed. Under mild reaction conditions with use of Na2S2O4 the benzimidazo[2,1-b]quinazolin-12-ones were achieved in good yield from 3-(2-nitrophenyl)quinazolin-4-ones.
一种新的清洁,一锅煮3- arylquinazolin-4的合成(3 ħ) -酮和quinoxalino [2,1- b ]喹唑啉-6,12-(5 ħ) -二酮通过PPA介导的耦合ñ - (2- -羧基苯基)草酰胺与芳胺和 1,2-苯二胺已被开发。在使用Na 2 S 2 O 4的温和反应条件下,苯并咪唑并[ 2,1 - b ]喹唑啉-12-酮以良好产率从3-(2-硝基苯基)喹唑啉-4-酮获得。
Synthesis, crystal structure, cytotoxicities and DNA-binding properties of a tetracopper(II) complex with N-benzoato-N′-[2-(2-hydroxyethylamino)ethyl-amino]oxamide ligand
作者:Wen-Cai Chen、Ling-Dong Wang、Yan-Tuan Li、Zhi-Yong Wu、Cui-Wei Yan
DOI:10.1007/s11243-012-9623-2
日期:2012.9
A new dissymmetrical N,N’-bis(substituted)oxamide ligand, N-benzoato-N′-[2-(2- hydroxyethylamino)ethyl]oxamide (H3bhyox), and its tetranuclear copper(II) complex, [Cu4(bhyox)2(dabt)2](ClO4)2 (1) have been synthesized and characterized (dabt = 2,2′-diamino- 4,4′-bithiazole). The crystalstructures of H3bhyox and complex 1 have been determined by X-ray single-crystal diffraction. Complex 1 has a cyclic
一种新的不对称 N,N'-双(取代)草酰胺配体 N-benzoato-N'-[2-(2- hydroxyethylamino)ethyl]oxamide (H3bhyox) 及其四核铜 (II) 配合物 [Cu4(bhyox) )2(dabt)2](ClO4)2 (1) 已合成并表征(dabt = 2,2'-二氨基-4,4'-联噻唑)。H3bhyox 和配合物 1 的晶体结构已通过 X 射线单晶衍射确定。配合物 1 具有带有嵌入反转中心的环状四核阳离子,其中通过草酰胺桥和羧基桥的 Cu-Cu 分离度分别为 5.2246(6) 和 5.3141(6) Å。cis-bhyox3− 配体内部和外部位点的 Cu(II) 中心都具有方形金字塔几何形状。晶体中有一个 3D 氢键网络。研究了 H3bhyox 和复合物 1 的细胞毒性和 DNA 结合特性。
A synthesis of the quinazolin-4-one pharmacological agent methaqualone from N-(2-carboxyphenyl)oxalamide was developed. A new method for the reductive cyclization of 3-(2-nitrophenyl)quinazolin-4-ones to benzimidazo[2,1-b]quinazolin-12(6H)-ones, the 6-deoxo-6-aza analogs of natural alkaloid tryptanthrine, was suggested and new derivatives of poorly available quinoxalinoquinazolinone fused system were
开发了以N- (2-羧基苯基)草酰胺为原料合成喹唑啉-4-酮药物甲喹酮的方法。 3-(2-硝基苯基)喹唑啉-4-酮还原环化为天然产物6-脱氧-6-氮杂类似物苯并咪唑[2,1 -b ]喹唑啉-12(6 H )-酮的新方法提出了生物碱色胺酮,并合成了难以利用的喹喔啉喹唑啉酮稠合系统的新衍生物。
MODULATORS OF PROTEIN TYROSINE PHOSPHATASES (PTPASES)