22504-84-3Relevant academic research and scientific papers
The synthesis of α,β-unsaturated carbonyl derivatives with the ability to inhibit both glutathione S-transferase P1-1 activity and the proliferation of leukemia cells
Zhao, Guisen,Liu, Chuan,Wang, Rui,Song, Dandan,Wang, Xiaobing,Lou, Hongxiang,Jing, Yongkui
, p. 2701 - 2707 (2008/02/07)
Ethacrynic acid (EA), an α,β-unsaturated carbonyl compound, is a glutathione S-transferase P1-1 (GSTP1-1) inhibitor. Twenty-one novel EA derivatives have been synthesized. The effects of these compounds on GSTP1-1 activity and on the proliferation of human leukemia HL-60 cells have been determined. Compounds with a halogen substitution at the 3′-position of the aromatic ring have greater inhibitory effects on GSTP1-1 activity than those of compounds with a methyl substitution there. Compounds with substitutions at both the 2′- and 3′-positions of the aromatic ring have more antiproliferative ability than those with one substitution at 3′-position. Esterification of the carboxyl group appears to increase the antiproliferative ability.
Optical resolution of aryloxypropionic acids and their esters by HPLC on cellulose tris-3,5-dimethyl-triphenylcarbamate derivative
Azzolina,Collina,Ghislandi
, p. 1401 - 1416 (2007/10/02)
Chiral chromatographic resolution of a series of antiphlogistic 2- aryloxypropionic acids and their methyl and ethyl esters was performed using a Chiralcel OD column. The CSP selected resolved most of the acids and esters efficiently, the enantiomers being well separated without requiring time consuming analysis. Chromatographic separation of R enriched samples was performed to determine the correct elution order. Using eluting systems such as hexane and 2-propanol, or hexane, 2-propanol and formic acid, the S enantiomer of all acids and esters was always found to elute first. We also considered the role of electron-donating or electron-withdrawing substituents (at the aryloxylic moiety) on the chiral resolution. It was shown that the electronic features of the substituents have more influence on the chiral interactions between the solutes and the CSP than their steric hindrance. Finally we determined, by molecular models, the interaction between CSP and solutes. In this way were able to determine all the potential sites for interactions, which are compatible with the conformations of the compounds and the structure of the stationary phase, and point out those interactions which enable chiral resolution.
