[EN] NOVEL BETULINIC ACID PROLINE DERIVATIVES AS HIV INHIBITORS<br/>[FR] NOUVEAUX DÉRIVÉS PROLINE DE L'ACIDE BÉTULINIQUE UTILISÉS COMME INHIBITEURS DU VIH
申请人:HETERO RESEARCH FOUNDATION
公开号:WO2014105926A1
公开(公告)日:2014-07-03
The invention relates to novel betulinic acid derivatives and related compounds, and pharmaceutical compositions useful for the therapeutic treatment of viral diseases and particularly HIV mediated diseases. These compounds are esterified in position 3 and are substituted in position 17 of the betulinic acid structure, via a linking group W, by a saturated 5-7 membered nitrogen-heterocycle.
Anti-AIDS Agents 49. Synthesis, Anti-HIV, and Anti-Fusion Activities of IC9564 Analogues Based on Betulinic Acid
作者:I-Chen Sun、Chin-Ho Chen、Yoshiki Kashiwada、Jiu-Hong Wu、Hui-Kang Wang、Kuo-Hsiung Lee
DOI:10.1021/jm020069c
日期:2002.9.1
are fusion inhibitors. The structure-activity relationship data also indicated that a double bond in IC9564 can be eliminated and the statine moiety can be replaced with L-leucine while retaining anti-HIV activity.
Antimicrobial properties of amine- and guanidine-functionalized derivatives of betulinic, ursolic and oleanolic acids: Synthesis and structure/activity evaluation
作者:Anna Yu. Spivak、Rezeda R. Khalitova、Darya A. Nedopekina、Rinat R. Gubaidullin
DOI:10.1016/j.steroids.2019.108530
日期:2020.2
A series of 34 new amine- and guanidine-functionalized derivatives of betulinic, ursolic, and oleanolic acids were synthesized and tested for their antimicrobial activity against the growth of four bacterial strains (Escherichia colt Acinetobacter baumannii, Pseudomonas aeruginosa, and Staphylococcus aureus (MESA)) and two fungal strains (Candida albicans and Cryptococcus neoformans). The obtained compounds were also tested for the cytotoxic effect against HEK293 human embryonic kidney cell line and hemolytic activity against human red blood cells. Most of the prepared amino and guanidinium derivatives of betulinic, ursolic, and oleanolic acids showed a considerably higher bacteriostatic activity against methicillin-resistant S. aureus than the parent compounds. The most active compounds (MICs <= 0.25 mu g/ml or 0.4-0.5 mu M) were superior over the clinically used antibiotic vancomycin in the antibacterial effect (MIC of 1 mu g/ml or 0.7 mu M). Apart from antibacterial activity, new triterpene acid derivatives exhibited excellent antifungal activity against Cryptococcus neoformans, with MICs values being as low as 0.25 mu g/ml (0.4 mu M), and were approximately 65 times as active as fluconazole, a known antifungal agent. Four most promising compounds we identified (7, 13, 24, and 33) showed not only high bacteriostatic effect, but also low cytotoxicity against mammalian HEK293 cells and high hemolytic selectivity.
[EN] NOVEL BETULINIC ACID DERIVATIVES AS HIV INHIBITORS<br/>[FR] NOUVEAUX DÉRIVÉS D'ACIDE BÉTULINIQUE À TITRE D'INHIBITEURS DU VIH
申请人:HETERO RESEARCH FOUNDATION
公开号:WO2013160810A2
公开(公告)日:2013-10-31
(I)The invention relates to novel novel betulinic acid derivatives and related compounds, and pharmaceutical compositions useful for therapeutic treatment of viral diseases and particularly HIV mediated diseases.