involved in regulation of serum uric acid, xanthine oxidase (XO) is the best pharmacological target to control the levels of serum uric acid as it catalyzes the final steps in uric acid production. In the current study, a systemic search for the inhibitors of xanthine oxidase, starting from synthesis to in vitro screening and leading to in vivostudies is presented. Benzylidene nicotino/isonicotinohydrazides
Synthesis, crystal structure, spectral characterization, theoretical studies, and investigation of catalytic activity in selective oxidation of sulfides by oxo-peroxo tungsten(VI) Schiff base complex
oxo–peroxo tungsten(VI) Schiff base complex, [WO(O2)L(CH3OH)], a homogeneous catalyst for sulfoxidation was synthesized by treating WO3 in the presence of H2O2 with a dibasic tridentate (ONO) Schiff base ligand. The complex was characterized by FT–IR, 1H NMR, and 13C NMR spectroscopy. Moreover, the structure of the crystalline tungsten(VI) complex was further investigated by single crystal X-ray diffraction
通过在 H 2 O 2存在下用二元三齿酸盐处理 WO 3合成了一种新型的氧代-过氧钨 (VI) 席夫碱配合物[WO(O 2 )L(CH 3 OH)],这是一种用于磺化氧化的均相催化剂(ONO) 席夫碱配体。通过 FT-IR、1 H NMR 和13对该配合物进行了表征C 核磁共振波谱。此外,通过单晶X射线衍射分析(SC-XRD)进一步研究了结晶钨(VI)配合物的结构。晶体结构分析表明,该配合物是七配位的,金属离子被配位双去质子化配体的ONO集包围,呈扭曲的五角-双锥几何结构。在 Def2-TZVP 基组的 B3LYP 理论水平上,利用 DFT 对合成化合物的几何参数、前沿分子轨道 (FMO)、分子静电势 (MEP) 和自然键轨道 (NBO) 分析的理论计算揭示了预测数据与实验结果相符。2 O 2。
SMALL MOLECULE INHIBITORS OF HIV-1 ENTRY AND METHODS OF USE THEREOF
申请人:Dana-Farber Cancer Institute, Inc.
公开号:US20170298056A1
公开(公告)日:2017-10-19
Described herein are small-molecule compounds that specifically inhibit a wide range of HIV-1 isolates without interfering with CD4 or CCR5 binding. Methods of using die compounds for treating or preventing HIV infection are also described.
[EN] COMPOSITIONS AND METHODS BASED ON HIV GP120 MUTANTS<br/>[FR] COMPOSITIONS ET PROCÉDÉS FONDÉS SUR DES MUTANTS GP120 DU VIH
申请人:CENTRE HOSPITALIER DE LUNIVERSITE DE MONTREAL
公开号:WO2021056105A1
公开(公告)日:2021-04-01
Compositions and methods based on the use of mutated HIV-1 gp120 polypeptides having amino acid substitutions at positions 61, 105, 108, 375, 474, 475 and 476 are described. These mutated HIV-1 gp120 polypeptides, which make the HIV env protein more amenable to adopt specific conformations when contacted with gp120 ligands, may be useful as vaccines or tools to identify and characterize agents modulating HIV infection.
Diverse coordination of isoniazid hydrazone Schiff base ligand towards iron(III): Synthesis, characterization, SC-XRD, HSA, QTAIM, MEP, NCI, NBO and DFT study
A new iron(III) complex has been successfully prepared by the reaction of an ONO donor Schiff base, derived by condensing isoniazid and 3-ethoxysalicylaldehyde, with Fe(acac)3. The structure of the complex was explored spectroscopically through FT-IR, UV–Vis, PXRD and by elemental composition (CHN) through combustion analysis. The structure of the complex was explored by using single crystal X-ray