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.
Aromatase inhibition by 5-substituted pyrimidines and dihydropyrimidines
作者:Harold M. Taylor、C. David Jones、James D. Davenport、Kenneth S. Hirsch、T. J. Kress、Dix Weaver
DOI:10.1021/jm00391a016
日期:1987.8
The inhibition of estrogen biosynthesis has been suggested to be an effective treatment of hormone-dependent diseases, particularly breast cancer. Several series of 5-substituted pyrimidine derivatives have been synthesized and tested for their ability to inhibit the enzyme aromatase (estrogen synthetase). Compounds were evaluated in an in vitro assay that measured the inhibition of rat ovarian microsomal aromatase activity. Greatest inhibitory activity was achieved in the cases of diarylpyrimidinemethanols and diarylpyrimidinyl methanes which were substituted in the 4- and 4'-positions with electron-withdrawing substituents, particularly Cl.
TAYLOR, H. M.;JONES, C. D.;DAVENPORT, J. D.;HIRSCH, K. S.;KRESS, T. J.;WE+, J. MED. CHEM., 30,(1987) N 8, 1359-1365
作者:TAYLOR, H. M.、JONES, C. D.、DAVENPORT, J. D.、HIRSCH, K. S.、KRESS, T. J.、WE+