[EN] PYRIDINONE- AND PYRIDAZINONE-BASED COMPOUNDS AND MEDICAL USES THEREOF<br/>[FR] COMPOSÉS À BASE DE PYRIDINONE ET DE PYRIDAZINONE ET UTILISATIONS MÉDICALES ASSOCIÉES
申请人:HLA TIMOTHY
公开号:WO2019173790A1
公开(公告)日:2019-09-12
The various examples presented herein are directed to compounds of the formula A-L1-Het1-L2-Cy1 or a pharmaceutical acceptable salt, polymorph, prodrug, solvate or clathrate thereof, wherein: A is cycloalkyl, aryl, arylalkyl or heterocyclyl; Het1 is heterocyclyl containing at least two heteroatoms; Cy1 is a heterocyclyl; L1 is a bond, alkyl, alkenyl or alkynyl linker; L2 is an acyl or alkyl linker; and A and Cy1 are different. The compounds are useful in the treatment of fibrotic diseases, abnormal vascular leak and pathological angiogenesis.
Approach to Synthesis of β-Enamino Ketones and Pyrroles Catalyzed by Gallium(III) Triflate Under Solvent-Free Conditions
作者:Jiuxi Chen、Xiaoliang Yang、Miaochang Liu、Huayue Wu、Jinchang Ding、Weike Su
DOI:10.1080/00397910902898528
日期:2009.11.5
Abstract Metal triflates have been used to catalyzesynthesis of β-enamino ketones or pyrroles from amines and 1,3-dicarbonyl or 1,4-dicarbonyl compounds undersolvent-freeconditions, respectively. Among different metal triflates screened, 0.5 mol% Ga(OTf)3 efficiently promoted the reactions to give excellent yields. In addition, the catalyst could be recovered easily after the reactions and reused
Facial Preparation of Sulfonic Acid-Functionalized Magnetite-Coated Maghemite as a Magnetically Separable Catalyst for Pyrrole Synthesis
作者:Hajar Mahmoudi、Abbas Ali Jafari
DOI:10.1002/cctc.201300623
日期:2013.12
The synthesis, characterization, and catalytic performance of the new sulfonic acid supported on the magnetic nanoparticles with maghemite coating were reported. The morphology, particle size, structure, magnetic properties, and the formation of nanoparticles with narrow size distribution were investigated. Chemical analysis was performed by using TEM, wide‐angle XRD, FTIR spectroscopy, and X‐ray fluorescence
An approach to the Paal–Knorr pyrroles synthesis catalyzed by Sc(OTf)3 under solvent-free conditions
作者:Jiuxi Chen、Huayue Wu、Zhiguo Zheng、Can Jin、Xingxian Zhang、Weike Su
DOI:10.1016/j.tetlet.2006.05.085
日期:2006.7
A facile synthesis of N-substitutedpyrroles by the Paal–Knorrcondensation has been accomplished using a simple procedure. Among different metal triflates screened, 1 mol % Sc(OTf)3 efficiently promoted the reaction to give excellent yield (89–98%) under mild reaction conditions. Additionally, Sc(OTf)3 could be recovered easily after the reactions and reused without evident loss in activity.
Triazole−Au(I) Complexes: A New Class of Catalysts with Improved Thermal Stability and Reactivity for Intermolecular Alkyne Hydroamination
作者:Haifeng Duan、Sujata Sengupta、Jeffrey L. Petersen、Novruz G. Akhmedov、Xiaodong Shi
DOI:10.1021/ja9041093
日期:2009.9.2
3-triazole-bound cationic Au(I) catalysts have been synthesized, and their structures have been characterized by X-ray crystallography. Variable-temperature NMR studies revealed dynamic triazole-Au cation coordination in solution. Reaction profiles clearly indicated that these new catalysts possess much better thermal stability than literature-reported Au catalysts, including IPrAu x NTf(2). By application
合成了一系列 1,2,3-三唑结合的阳离子 Au(I) 催化剂,并通过 X 射线晶体学表征了它们的结构。变温核磁共振研究揭示了溶液中的动态三唑-金阳离子配位。反应曲线清楚地表明,这些新催化剂比文献报道的 Au 催化剂具有更好的热稳定性,包括 IPrAu x NTf(2)。通过应用这些催化剂,用反应性较低的内炔和未保护的脂肪胺实现了具有挑战性的分子间加氢胺化反应,在低催化剂负载的情况下获得了优异的产率。