作者:Sudarshana Majumder、Sagarika Pasayat、Satabdi Roy、Subhashree P. Dash、Sarita Dhaka、Mannar R. Maurya、Martin Reichelt、Hans Reuter、Krzysztof Brzezinski、Rupam Dinda
DOI:10.1016/j.ica.2017.09.043
日期:2018.1
substituted aromatic aldehydes/ketones. All the synthesized ligands and metal complexes were successfully characterized by elemental analysis, IR, UV–Vis and NMR spectroscopy. X-ray structures of 1 – 6 revealed that the ligands coordinate to the metal center as a dibasic tridentate ligand. Cyclic voltammetry of the complexes shows two irreversible reductive responses within the potential window −0.50 to −1.36 V
摘要七个新的二氧化钼(VI)络合物[MoO 2 L 1(X)]。X(1)和[MoO 2 L 2-7(X)](2-7)[其中X = EtOH,分别为1和5分离出X = DMSO,在2 – 4和6的情况下,7 []含有大的3-羟基-2-萘取代基的芳香酰嗪被分离并进行结构表征。芳嗪配体H 2 L 1–7来自3-羟基-2-萘甲酸酰肼与几种取代的芳族醛/酮的缩合反应。所有合成的配体和金属络合物均已通过元素分析,IR,UV-Vis和NMR光谱法成功表征。1-6的X射线结构表明,配体作为二元三齿配体与金属中心配位。配合物的循环伏安法显示在电位窗口-0.50至-1.36 V内有两个不可逆的还原反应,由于采用了Mo VI / Mo V和Mo V / Mo IV工艺。合成的配合物1–7被用作安息香的氧化催化剂和水杨醛的氧化溴化反应(作为卤代过氧化物酶的功能模拟物)。结果发现,在含有庞大取代基的催化剂1–7的存
Synthesis, structural characterization and thermal properties of three copper(II) complexes based on aryl hydrazide ligands
作者:Ming-Li Liu、Jian-Min Dou、Da-Cheng Li、Da-Qi Wang、Jian-Zhong Cui
DOI:10.1007/s11243-011-9565-0
日期:2012.2
and C–H···Cl hydrogen bonds. Complexes 2 and 3 have similar planar structures but different dimers formed by concomitant Cu···N and Cu···O interactions, respectively. Solvent accessible voids with a volume of 391 Å3 are included in the structure of complex 2, indicating that this complex is a potential host candidate. Thermogravimetric analysis shows that the three complexes are stable up to 100 °C.
Compositions and methods for treating a patient infected with a metazoan parasite by inhibiting the enzymatic action of the metazoan parasite protease. The compositions comprise at least one metazoan protease inhibitor which binds to the S2 subsite and at least one of the S1 and S1' subsites of the metazoan parasite protease. The methods comprise administration to a patient infected with a metazoan parasite of at least one metazoan protease inhibitor in an amount effective to inhibit the protease of the metazoan parasite, thereby killing the parasite.
The present invention relates to broad spectrum β-lactamase inhibitors. More particularly, the invention relates to inhibitors of Class B metallo (MBL) and Class D (OXA) β-lactamases. A method of treating a bacterial infection is provided, wherein the method comprises administering to a mammalian patient in need of such treatment a compound of formula (I)
wherein
R
1
is selected from
R
2
is selected from
with certain provisos as herein defined;
in combination with a pharmaceutically acceptable β-lactam antibiotic in an amount which is effective for treating the bacterial infection.