An efficient nano CuO-catalyzed synthesis and biological evaluation of quinazolinone Schiff base derivatives and bis-2,3-dihydroquinazolin-4(1H)-ones as potent antibacterial agents against Streptococcus lactis
作者:Jin Zhang、Pei Cheng、Yangmin Ma、Jia Liu、Zhi Miao、Decheng Ren、Chao Fan、Ming Liang、Le Liu
DOI:10.1016/j.tetlet.2016.10.047
日期:2016.11
3-dihydroquinazolin-4(1H)-ones by use of hydrazine hydrate and ethidene diamine as nitrogen source. The antibacterial activity was investigated using minimum inhibitory concentration (MIC) method against four bacterial strains. Tests have shown that these derivatives have potential activity against Streptococcus lactis. The structure–activity relationship of the antibacterial activity evaluation was
作者:Fueloep, Ferenc、Simeonov, Mario、Pihlaja, Kalevi
DOI:——
日期:——
Combinatorial Synthesis of 3-Arylideneaminoquinazolin-4(1<i>H</i>)-one Derivatives Catalyzed by Iodine in Ionic Liquids
作者:Xiang-Shan Wang、Jie Sheng、Lian Lu、Ke Yang、Yu-Ling Li
DOI:10.1021/co1000713
日期:2011.3.14
A combinatorial synthesis of 3-arylideneaminoquinazolin-4(1H)-one derivatives is described by a reaction of 2-aminobenzohydrazides with two equivalents of aldehydes or ketones in ionicliquidscatalyzed by iodine. Controlling the reaction temperature or reducing the activity of the substrates, respectively, the intermediate products of hydrazones were obtained first, and then they were applied to react
Some mixed ligand Cu(II) complexes of the type [Cu(L)(en)X(2)] (1a-3a), [Cu(L)(en)](ClO(4))(2) (4a), [Cu(L)(phen)X(2)] (1b-3b) and [Cu(L)(phen)](ClO(4))(2) (4b) [where L = 2-phenyl-3-(benzylamino)-1,2-dihydroquinazoline-4-(3H)-one; en = ethylenediamine; phen = 1,10-phenanthroline; X = Cl(-), N(3)(-) and NCS(-)] have been prepared. The complexes were characterized on the basis of elemental analysis
[Cu(L)(en)X(2)](1a-3a),[Cu(L)(en)](ClO(4))(2)(4a)类型的一些混合配体Cu(II)配合物),[Cu(L)(phen)X(2)](1b-3b)和[Cu(L)(phen)](ClO(4))(2)(4b)[其中L = 2-苯基- 3-(苄氨基)-1,2-二氢喹唑啉-4-(3H)-1;en =乙二胺;phen = 1,10-菲咯啉; X = Cl(-),N(3)(-)和NCS(-)]已经制备。根据元素分析,摩尔电导,磁矩,IR,UV-vis,质量,ESR和热学研究对络合物进行表征。根据电子光谱数据和磁化率测量,已针对1a-3a和1b-3b提出了八面体几何形状,并针对4a和4b提出了方平面几何形状。配合物的ESR光谱数据基于哈密顿参数和共价度提供了有关其结构的信息。