A variety of novel aromatic and heterocyclicaromatic curcuminoids were synthesised, characterised and their anti-inflammatory activities (AIA) determined in vivo. Some of these compounds also were tested for inflammatory mediator production. The AIA of the main representatives of these compounds were assessed by oral administration to female Wistar rats using (a) acute carrageenan-induced paw oedema
l-Ascorbic acid in organic synthesis: a facile synthesis of 4-(butenolide-5-methylidenyl)-1,4-dihydropyridines
作者:Surendra S. Bisht、Namrata Dwivedi、Rama P. Tripathi
DOI:10.1016/j.tetlet.2006.12.067
日期:2007.2
efficient synthesis of 4-(butenolide-5-methylidenyl)-1,4-dihydropyridines has been achieved via a three-component reaction of β-keto esters or ketones, ammonium acetate and vinylic aldehydesfrom ascorbic acid in the presence of tetrabutylammonium hydrogen sulfate in ethylene glycol.