synthesized by condensation of substitutedaldehydes with ethylenediamine, Pd-catalyzed N-arylation of 2-imidazolines and by the formation of 1,2,4-oxadiazoles and benzoxazepines from 2-imidazoline-containing precursors. The 2-imidazoline derivatives were evaluated as potential inhibitors of human monoamineoxidase (MAO) A and B. Among the 2-imidazolines, good potency inhibitors were discovered with compound
Structure-activity and structure-property relationships of novel Nrf2 activators with a 1,2,4-oxadiazole core and their therapeutic effects on acetaminophen (APAP)-induced acute liver injury
The antioxidant function induced by Nrf2protects the liver from damage. We found a novel Nrf2 activator named compound 25 via structural modification of compound 1 we previously reported. In vitro, compound 25 induced Nrf2 transport into the nucleus and protected hepatocyte L02 cells from APAP-induced cytotoxicity via activating the Nrf2-ARE signalingpathway. In vivo, 25 exhibited therapeutic effects
A new method for the synthesis of highly substituted naphthyridine‐based polyheteroaromatic compounds in high yields proceeds throughrhodium(III)‐catalyzed multiple CH bond cleavage and CC and CN bond formation in a one‐pot process. Such highly substituted polyheteroaromatic compounds have attracted much attention because of their unique π‐conjugation, which make them suitable materials for organic
Transition-metal-catalyzed, directed intermolecular C–Hbond functionalization is synthetically useful but heavily underexplored in multiheteroatom heterocycle synthesis. Herein we report a cobalt catalytic method for the formation of a three-nitrogen-bearing benzotriazine scaffold via the coupling of arylhydrazine and oxadiazolone. This synthetic protocol features a low-cost base metal catalyst, a
Substituted homopiperidine, piperidine or pyrrolidine derivatives
申请人:Sorensen Lindy Jan
公开号:US20050107434A1
公开(公告)日:2005-05-19
A novel class of substituted homopiperidine, piperidine and pyrrolidine derivatives, methods for their preparation, pharmaceutical compositions comprising them and use thereof in the treatment of disorders related to the histamine H3 receptor. More particularly, the compounds possess histamine H3 receptor antagonistic activity and are thus useful in the treatment of disorders in which a histamine H3 receptor blockade is beneficial.