representative complexes 3 and 7 demonstrate the capability of arresting the cell cycle in the G2/M phase and induce apoptosis. The inhibition of VEGFR2 phosphorylation with the representative ligands L2 and L4 and the corresponding metal complexes 3 and 7in vitro shows that the organic-directing ligands and their complexes inhibit VEGFR2 phosphorylation. Besides, L2, L4, 3, and 7 inhibit the phosphorylation
八种新的钌 (II) 配合物,由通式 [Ru II ( p -cym)(L)X] + [其中配体 L 为 2-(1 H -pyrazol-1-yl ) 的N , N - 螯合吡唑基苯并咪唑配体)-1 H-苯并[ d ]咪唑( L1 )在吡唑环的4位被Cl( L2 )、Br( L3 )或I( L4 )和X=Cl-和I- ]取代并合成并使用各种分析技术进行表征。配合物1和3还通过单晶X射线晶体学进行了表征,它们分别在空间群P 2 1 / n和P 2 1 / c中结晶为单斜晶系。该配合物在生理 pH 7.4 下表现出良好的溶液稳定性。与它们的氯化物类似物(1、3、5和_ _ _ _ _ _ _ _ _7)。卤代取代的 2-(1 H-吡唑-1-基)-1 H-苯并[ d ]咪唑配体,设计为有机导向分子,可抑制血管内皮生长因子受体 2 (VEGFR2) 磷酸化。此外,钌 (II) 配合物显示出与 DNA
Direct, Metal-Free Amination of Heterocyclic Amides/Ureas with NH-Heterocycles and N-Substituted Anilines in POCl<sub>3</sub>
作者:Xiaohu Deng、Armin Roessler、Ivana Brdar、Roger Faessler、Jiejun Wu、Zachary S. Sales、Neelakandha S. Mani
DOI:10.1021/jo201425q
日期:2011.10.21
A POCl3-mediated, direct amination reaction of heterocyclicamides/ureas with NH-heterocycles or N-substituted anilines is described. Compared to the existing methods, this operationally simple protocol provides unique reactivity and functional group compatibility because of the metal-free, acidic reaction conditions. The yields are generally excellent.