Discovery of Dual Target Inhibitors against Cyclooxygenases and Leukotriene A4 Hydrolyase
摘要:
Dual target inhibitors against COX-2. and LTA(4)H were designed by adding functional groups from a marketed COX-2 inhibitor, Nimesulide, to an existing LTA(4)H inhibitor 1-(2-(4-phenoxyphenoxy) ethyl) pyrrolidine. A series of phenoxyphenyl pyrrolidine compounds were synthesized and tested for their inhibition activities using enzyme assays and human whole blood assay. Introduction of small electron withdrawing groups like NO2 and CF3 in the ortho-position of the terminal phenyl ring was found to change the original single target LTA(4)H inhibitor to dual target LTA(4)H and COX-2 inhibitors. Compound 5a and 5m showed dual LTA(4)H and COX-2 inhibition activities in the enzyme assays and the I-EWE assay with IC50 values in the micromolar to submicromolar range. As their activities in HWB assay were comparable to the two starting single target inhibitors, the two compounds are promising for further studies. The strategy used in the current study may be generally applicable to other dual target drug designs.
Copper and l -sodium ascorbate catalyzed hydroxylation and aryloxylation of aryl halides
摘要:
CuSO4 center dot 5H(2)O and NaAsc catalyzed hydroxylation and C-O/C-S cross-coupling reactions of aryl halides with phenols or 4-methylbenzenethiol were described. A wide range of substrates and test cases highlight the synthetic utility of the approach. A series of phenols, diaryl ethers, allcylaryl ethers, and diaryl thioethers were synthesized in high yield. (C) 2015 Elsevier Ltd. All rights reserved.
[EN] SUBSTITUTED TRIAZINONES AS THYROID HORMONE RECEPTOR AGONISTS<br/>[FR] TRIAZINONES SUBSTITUÉES EN TANT QU'AGONISTES DU RÉCEPTEUR DE L'HORMONE THYROÏDIENNE
申请人:ECCOGENE SHANGHAI CO LTD
公开号:WO2021143706A1
公开(公告)日:2021-07-22
The application relates to a compound of Formula (I') or (I), or a pharmaceutically acceptable salt, hydrate, solvate, prodrug, stereoisomer, or tautomer thereof, which modulates the activity of thyroid hormone receptors, a pharmaceutical composition comprising a compound of Formula (I') or (I), and a method of treating or preventing a disease or disorder regulated by thyroid hormone.
作者:Marjorie C. Caserio、Donald L. Glusker、John D. Roberts
DOI:10.1021/ja01511a019
日期:1959.1
The products of hydrolysis of some unsymmetrically substituted diphenyliodonium salts to phenols and aryl iodides have been identified and their distributions determined. The direction of cleavage has been found to be insensitive to the nature of the substituents, the solvent, catalysts, and the nature of the associated anion, fluoride, fluoroborate, p-toluenesulfonate or trifluoroacetate. A rate study
An inexpensive and efficient catalyst system for synthesis of aryl ethers has been developed by using 20 mol% CuI as the catalyst, 30 mol% dimethylaminomethylphosphonic acid derivatives as the new ligands, K2CO3 as the base and toluene as the solvent. This is the first example using aminophosphonates as the ligands for Ullmann ether coupling reaction.
Highly Efficient Copper-Catalyzed O-Arylation Using Readily Available (<i>S</i>)-<i>N</i>-Methylpyrrolidine-2-Carboxamide as the Ligand
作者:Hua Fu、Xianghao Liu、Yuyang Jiang、Yufen Zhao
DOI:10.1055/s-2007-1000878
日期:2008.1
A highly efficient and readily available catalyst system for O-arylation of various phenols using CuI and (S)-N-methylpyrrolidine-2-carboxamide (Pro-NHMe) was developed. The reaction is widely applicable to the synthesis of diaryl ethers
A highly porous Zn-based iso-reticular metal–organicframework (IRMOF-3) has been selected for covalent modification. Pyridine-2-aldehyde has been used to decorate the free amine group of IRMOF-3 in the porous matrix. Schiff base moiety thus generated has been availed to anchor copper(II) ions to prepare the desired catalyst that catalyzes O-arylation reactions heterogeneouslyunder mild reaction conditions