Analogues of Fenarimol Are Potent Inhibitors of Trypanosoma cruzi and Are Efficacious in a Murine Model of Chagas Disease
摘要:
We report the discovery of nontoxic fungicide fenarimol (1) as an inhibitor of Trypanosoma cruzi (T. cruzi), the causative agent of Chagas disease, and the results of structure-activity investigations leading to potent analogues with low nM IC(50)s in a T. cruzi whole cell in vitro assay. Lead compounds suppressed blood parasitemia to virtually undetectable levels after once daily oral dosing in mouse models of T. cruzi infection. Compounds are chemically tractable, allowing rapid optimization of target biological activity and drug characteristics. Chemical and biological studies undertaken in the development of the fenarimol series toward the goal of delivering a new drug candidate for Chagas disease are reported.
[EN] CLASS OF NOVEL SMAD3 PROTEIN DEGRADERS AND APPLICATION THEREOF<br/>[FR] CLASSE DE NOUVEAUX AGENTS DE DÉGRADATION DE PROTÉINE SMAD3 ET LEUR APPLICATION<br/>[ZH] 一类新型Smad3蛋白降解剂及其应用
A novel series of omega-pyridylalkenoic acids has been prepared by applying the Wittig reaction. Modifications were made in the omega-aryl moiety, the alkylene chain length, the alpha-methylene group adjacent to the carbonyl group, and the carboxyl group of the molecule. The compounds were tested as inhibitors of thromboxane synthetase in an in vitro assay and in ex vivo experiments with the rat. Most members of this new class of thromboxane synthetase inhibitors (TXSI) showed good activity in both assay systems. (E)-7-Phenyl-7-(3-pyridyl)-6-heptenoic acid (9c; CV-4151) was one of the most potent compounds in in vitro enzyme inhibition (IC50 = 2.6 X 10(-8) M) and, when orally administered, the most potent and long acting in the inhibition of blood thromboxane A2 production in the rat. New conceptual models I-III for the enzyme-substrate (prostaglandin H2, PGH2) and the enzyme-TXSI interactions are proposed for understanding the molecular design and structure-activity relations.
TEHRAO, SINDZI;NISIKAVA, KOXEHJ
作者:TEHRAO, SINDZI、NISIKAVA, KOXEHJ
DOI:——
日期:——
KATO, KANEYOSHI;OHKAWA, SHIGENORI;TERAO, SHINJI;TERASHITA, ZEN-ICHI;NISHI+, J. MED. CHEM., 1985, 28, N 3, 287-294
Analogues of Fenarimol Are Potent Inhibitors of Trypanosoma cruzi and Are Efficacious in a Murine Model of Chagas Disease
作者:Martine Keenan、Michael J. Abbott、Paul W. Alexander、Tanya Armstrong、Wayne M. Best、Bradley Berven、Adriana Botero、Jason H. Chaplin、Susan A. Charman、Eric Chatelain、Thomas W. von Geldern、Maria Kerfoot、Andrea Khong、Tien Nguyen、Joshua D. McManus、Julia Morizzi、Eileen Ryan、Ivan Scandale、R. Andrew Thompson、Sen Z. Wang、Karen L. White
DOI:10.1021/jm2015809
日期:2012.5.10
We report the discovery of nontoxic fungicide fenarimol (1) as an inhibitor of Trypanosoma cruzi (T. cruzi), the causative agent of Chagas disease, and the results of structure-activity investigations leading to potent analogues with low nM IC(50)s in a T. cruzi whole cell in vitro assay. Lead compounds suppressed blood parasitemia to virtually undetectable levels after once daily oral dosing in mouse models of T. cruzi infection. Compounds are chemically tractable, allowing rapid optimization of target biological activity and drug characteristics. Chemical and biological studies undertaken in the development of the fenarimol series toward the goal of delivering a new drug candidate for Chagas disease are reported.