Click-Connected Ligand Scaffolds: Macrocyclic Chelates for Asymmetric Hydrogenation
摘要:
Click chemistry is used to construct ligand scaffolds for a series of chiral diphosphites. Enantioselectivity as high as 97% ee is obtained using these click ligands in rhodium-catalyzed asymmetric hydrogenation. Control experiments and spectroscopic data suggest that a 16-membered PP-macrocyclic Rh(I) chelate is formed.
Identification of a novel NAMPT inhibitor by combinatorial click chemistry and chemical refinement
作者:S. Theeramunkong、U. Galli、A. A. Grolla、A. Caldarelli、C. Travelli、A. Massarotti、M. P. Troiani、M. A. Alisi、G. Orsomando、A. A. Genazzani、G. C. Tron
DOI:10.1039/c5md00261c
日期:——
The identification of compounds able to inhibit the NAD salvage pathway is experiencing a growing popularity as it has been proposed to be a novel target for antitumoral and anti-inflammatory drugs.
化合物的鉴定能够抑制NAD回收途径,正变得越来越受欢迎,因为它被提议作为抗肿瘤和抗炎药物的新靶点。
[EN] O-ALKYL TRIAZOLYL CARBAMATES AS INHIBITORS OF FATTY ACID AMIDE HYDROLASE (FAAH)<br/>[FR] CARBAMATES DE O-ALKYLTRIAZOLYLE EN TANT QU'INHIBITEURS DE L'HYDROLASE DES AMIDES D'ACIDES GRAS (FAAH)
申请人:FOND ISTITUTO ITALIANO DI TECNOLOGIA
公开号:WO2015007613A1
公开(公告)日:2015-01-22
The present invention provides compounds of formula I and pharmaceutical compositions for inhibiting fatty acid amide hydrolase (FAAH). Inhibition of FAAH is contemplated as a method to sustain the levels of the fatty acid ethanolamides arachidonoylethanolamide (AEA), palmitoylethanolamide (PEA), and oleoylethanolamide (OEA), three substrates of FAAH, in conditions characterized byreduced concentrations of AEA, PEA and OEA. The invention also provides methods for treating disorders in which decreased levels of AEA, PEA and OEA are associated with the disorder.
Lysine specific demethylase 1 (LSD1), the first identified histone demethylase, plays an important role in epigenetic regulation of gene activation and repression. The up-regulated LSD l's expression has been reported in several malignant tumors. In the current study, we designed and synthesized five series of 1,2,3-triazole-dithiocarbamate hybrids and screened their inhibitory activity toward LSD1. We found that some of these compounds, especially compound 26, exhibited the most specific and robust inhibition of LSD1. Interestingly, compound 26 also showed potent and selective cytotoxicity against LSD1 overexpressing gastric cancer cell lines MGC-803 and HGC-27, as well as marked inhibition of cell migration and invasion, compared to 2-PCPA. Furthermore, compound 26 effectively reduced the tumor growth bared by human gastric cancer cells in vivo with no signs of adverse side effects. These findings suggested that compound 26 deserves further investigation as a lead compound in the treatment of LSD1 overexpressing gastric cancer.
Click-Connected Ligand Scaffolds: Macrocyclic Chelates for Asymmetric Hydrogenation
作者:Qing Zhang、James M. Takacs
DOI:10.1021/ol702890s
日期:2008.2.1
Click chemistry is used to construct ligand scaffolds for a series of chiral diphosphites. Enantioselectivity as high as 97% ee is obtained using these click ligands in rhodium-catalyzed asymmetric hydrogenation. Control experiments and spectroscopic data suggest that a 16-membered PP-macrocyclic Rh(I) chelate is formed.
Triazole-based chromogenic and non-chromogenic receptors for halides
作者:V. Haridas、Srikanta Sahu、P.P. Praveen Kumar
DOI:10.1016/j.tetlet.2011.10.066
日期:2011.12
We designed and synthesized a series of triazole-based receptors for anion recognition. Our studies demonstrated that an amide-linked triazole unit is a promising moiety for anion recognition. We synthesized various chromogenic and non-chromogenic receptors based on this moiety. Receptor 11 binds very strongly (K = 102,750 M-1) to fluoride. Receptor 18 changes color from faint yellow to orange upon binding to fluoride. (C) 2011 Elsevier Ltd. All rights reserved.