Inhibition of Cytosolic Phospholipase A2α: Hit to Lead Optimization
摘要:
Compound I was previously reported to be a potent inhibitor of cPLA,(x in both artificial monomeric substrate and cell-based assays. However, I was inactive in whole blood assays previously used to characterize cyclooxygenase and lipoxygenase inhibitors. The IC(50) of 1 increased dramatically with cell number or lipid/detergent concentration. In an attempt to insert an electrophilic ketone between the indole and benzoic acid moieties, we discovered that increasing the distance between the two moieties gave a compound with activity in the GLU (7-hydroxycoumarinyl-gamma-linolenate) micelle assay, which contains lipid and detergent. Extensive structure-activity relationship work around this lead identified a potent pharmacophore for cPLA a inhibition. The IC(50)s between the GLU micelle and rat whole blood assays correlated highly. No correlation was found for other parameters, including lipophilicity or acidity of the required acid functionality. Compounds 25, 39, and 94 emerged as potent, selective inhibitors of cPLA(2)alpha and represent well-validated starting points for further optimization.
作者:Kilany, Yeldez El、Mousaad, Ahmed、Hamid, Hamida Abdel、Ashry, El Sayed H. El
DOI:——
日期:——
Piper,J.R.; Stevens,F.J., Journal of Heterocyclic Chemistry, 1966, vol. 3, p. 95 - 97
作者:Piper,J.R.、Stevens,F.J.
DOI:——
日期:——
EL, KILANY YELDEZ;MOUSAAD, AHMED;HAMID, HAMIDA ABDEL;EL, ASHRY EL SAYED H+, GAZZ. CHIM. ITAL., 118,(1988) N 9, C. 617-621
作者:EL, KILANY YELDEZ、MOUSAAD, AHMED、HAMID, HAMIDA ABDEL、EL, ASHRY EL SAYED H+
DOI:——
日期:——
Heterocyclic sodium/proton exchange inhibitors and method
申请人:Ahmad Saleem
公开号:US06887870B1
公开(公告)日:2005-05-03
Heterocyclic are provided which are sodium/proton exchange (NHE) inhibitors which have the structure
wherein n is 1 to 5; X is N or C—R
5
wherein R
5
is H, halo, alkenyl, alkynyl, alkoxy, alkyl, aryl or heteroaryl; Z is a heteroaryl gorup, R
1
, R
2
, R
3
and R
4
are as defined herein, and where X is N. R
1
is preferably aryl or heteroaryl, and are useful as antianginal and cardioprotective agents. In addition, a method is provided for preventing or treating angina pectoris, cardiac dysfunction, myocardial necrosis, and arrhythmia employing the above heterocyclic derivatives.
Inhibition of Cytosolic Phospholipase A<sub>2</sub>α: Hit to Lead Optimization
作者:John C. McKew、Megan A. Foley、Paresh Thakker、Mark L. Behnke、Frank E. Lovering、Fuk-Wah Sum、Steve Tam、Kun Wu、Marina W. H. Shen、Wen Zhang、Mario Gonzalez、Shanghao Liu、Anu Mahadevan、Howard Sard、Soo Peang Khor、James D. Clark
DOI:10.1021/jm0507882
日期:2006.1.1
Compound I was previously reported to be a potent inhibitor of cPLA,(x in both artificial monomeric substrate and cell-based assays. However, I was inactive in whole blood assays previously used to characterize cyclooxygenase and lipoxygenase inhibitors. The IC(50) of 1 increased dramatically with cell number or lipid/detergent concentration. In an attempt to insert an electrophilic ketone between the indole and benzoic acid moieties, we discovered that increasing the distance between the two moieties gave a compound with activity in the GLU (7-hydroxycoumarinyl-gamma-linolenate) micelle assay, which contains lipid and detergent. Extensive structure-activity relationship work around this lead identified a potent pharmacophore for cPLA a inhibition. The IC(50)s between the GLU micelle and rat whole blood assays correlated highly. No correlation was found for other parameters, including lipophilicity or acidity of the required acid functionality. Compounds 25, 39, and 94 emerged as potent, selective inhibitors of cPLA(2)alpha and represent well-validated starting points for further optimization.