Novel antitubercular diallyl/dibenzylthiosemicarbazones endowed with high activity toward multi-drug-resistant tuberculosis
摘要:
Novel diallyl and dibenzylthiosemicarbazones were prepared by three-step reactions. The compounds were tested for their in vitro activity against Mycobacterium tuberculosis H37Rv (MTB) and multi-drug-resistant Mycobacterium tuberculosis (MDR-TB). Most of the compounds showed excellent activity toward MDR-TB. Among the thirty compounds (4,5a-o) tested N,N-dibenzyl-2-((5-nitrofuran-2-yl)methylene)hydrazinecarbothioamide (5g) was found to be the most potent compound MICs of 0.55 and 0.12 mu M against MTB and MDR-TB.
Self assembly of homoleptic Ni(ii) dithiocarbamates and dithiocarbimates via Ni⋯H–C anagostic and C–H⋯π (chelate) interactions
作者:Santosh K. Singh、Michael G. B. Drew、Nanhai Singh
DOI:10.1039/c3ce41358f
日期:——
crystallography. The crystal structure of 1 reveals unusual C–H⋯Ni intermolecular anagostic interactions in axial positions resulting in 1D supramolecular chains, whereas complex salts 3 and 5 display unique C–H⋯Ni anagostic interactions due to the close proximity of one or two methylene protons in the cationic moieties to the Ni(II) center of the [Ni(L3)2]2− complex anion, providing pseudo-square pyramidal and octahedral
形式为[Ni(L)2 ](L = L 1(二苄基二硫代氨基甲酸酯)1,L 2(N-苄基-N,N-二甲基亚乙基二硫代氨基甲酸酯)2和(R)2 [Ni(L 3)2)](L 3 =对氯苯磺酰基二硫代氨基甲酸酯; R =(C 2 H 5)4 N + 3,(C 3 H 7)4 N + 4,(C 6 H已经制备了13) 4 N + 5)并通过元素分析,IR, 1 H和13 C NMR和UV-可见吸收光谱进行了表征。另外,它们的结构已经通过X射线晶体学阐明。的晶体结构1揭示了不寻常的C-H⋯镍分子间中产生一维超分子链轴向位置anagostic相互作用,而络合物盐3和5显示唯一的C-H⋯镍anagostic相互作用由于一个或两个亚甲基质子的紧密接近到[Ni(L 3) 2 ] 2-的Ni( II)中心的阳离子部分复合阴离子,分别在金属中心周围提供伪正方形的金字塔和八面体的配位环境。据我们所知,3和5是二硫键
Disulfiram as a potent metallo-β-lactamase inhibitor with dual functional mechanisms
作者:Cheng Chen、Ke-Wu Yang、Lin-Yu Wu、Jia-Qi Li、Le-Yun Sun
DOI:10.1039/c9cc09074f
日期:——
We report a promising NDM-1 inhibitor, disulfiram, which can covalently bind to NDM-1 by forming an S–S bond with the Cys208 residue. Cu(DTC)2 also inactivated NDM-1 through oxidizing the Zn(ii) thiolate site of the enzyme.
Pentacoordination at antimony in dibenzostibocines via D–Sb transannular interactions (D=O, S): A structural study
作者:José G. Alvarado-Rodríguez、Simplicio González-Montiel、Noemí Andrade-López、Liliana B. López-Feliciano
DOI:10.1016/j.poly.2007.03.038
日期:2007.8
Abstract Addition of M2SCN(CH2R)2 to D(C6H4S)2SbCl in methylene chloride solution leaded to the formation of the stable compounds D(C6H4S)2SbS2CN(CH2R)2 (D = O, R = Me, 1; D = S, R = Me, 2; R = Ph, 3). The new dibenzostibocines derivatives containing two different types of dithioligands were characterized by elemental analysis and spectroscopic studies (IR, 1H and 13C NMR). Single crystal X-ray diffraction
摘要在二氯甲烷溶液中将M2SCN(CH2R)2添加到D(C6H4S)2SbCl中导致形成稳定的化合物D(C6H4S)2SbS2CN(CH2R)2(D = O,R = Me,1; D = S, R = Me,2; R = Ph,3)。通过元素分析和光谱研究(IR,1H和13C NMR)表征了包含两种不同类型的二硫代配体的新的二苯并stibocines衍生物。配合物1-3的单晶X射线衍射测定表明,锑原子充当受体原子,与供体D原子发生分子内跨环相互作用,将其配位从3扩展到5,并显示出倾斜的梯形局部几何形状。
Experimental and theoretical studies of palladium(II) and platinum(II) complexes derived from di-(2-pyridyl)methyl-N,N′-dibenzyldithiocarbamate
作者:Noemí Andrade-López、Simplicio González-Montiel、Ángel Ramos-Espinosa、Rosa L. Camacho-Mendoza、José Manuel Vásquez-Pérez、Gloria Sánchez-Cabrera、Francisco Javier Zuno-Cruz
DOI:10.1016/j.poly.2019.01.059
日期:2019.4
N′-dibenzyldithiocarbamate (L) and their metal complexes of formula [MII(L)Cl2], M = Pd (1); M = Pt, (2), and [PdII(L)2](BF4)2 (3) were synthesized and characterized in solution and in solid state by NMR, elemental analysis and vibrational spectroscopy, respectively. The crystal structures of the 1, 2, and 3 were stablished by X-ray single crystal diffraction. In all complexes, the molecular structures displayed
GOLD(III) COMPLEXES AS ANTICANCER AGENTS AND A METHOD OF TREATING CANCER
申请人:King Fahd University of Petroleum and Minerals
公开号:US20190023721A1
公开(公告)日:2019-01-24
Gold(III) complexes containing mixed ligands. A method of treating cancer with these complexes is disclosed. The complexes are cytotoxic to prostate, breast, ovarian, and Hodgkin lymphoma cancer cell lines. These complexes were either more potent than cisplatin or had similar potency to cisplatin.