Ester and Amide Derivatives of the Nonsteroidal Antiinflammatory Drug, Indomethacin, as Selective Cyclooxygenase-2 Inhibitors
作者:Amit S. Kalgutkar、Alan B. Marnett、Brenda C. Crews、Rory P. Remmel、Lawrence J. Marnett
DOI:10.1021/jm000004e
日期:2000.7.1
exchanging the 2-methyl group on the indole ring in the ester and amide series with a hydrogen also generated inactive compounds. Inhibition kinetics revealed that indomethacin amides behave as slow, tight-binding inhibitors of COX-2 and that selectivity is a function of the time-dependent step. Conversion of indomethacin into ester and amidederivatives provides a facile strategy for generating highly selective
Indomethacin Amides as a Novel Molecular Scaffold for Targeting <i>Trypanosoma cruzi</i> Sterol 14α-Demethylase
作者:Mary E. Konkle、Tatiana Y. Hargrove、Yuliya Y. Kleshchenko、Jens P. von Kries、Whitney Ridenour、Md. Jashim Uddin、Richard M. Caprioli、Lawrence J. Marnett、W. David Nes、Fernando Villalta、Michael R. Waterman、Galina I. Lepesheva
DOI:10.1021/jm801643b
日期:2009.5.14
Trypanosoma cruzi (TC) causes Chagas disease, which in its chronic stage remains incurable. We have shown recently that specific inhibition of TC sterol 14 alpha-demethylase (TCCYP51) with imidazole derivatives is effective in killing both extracellular and intracellular human stages of TC: An alternative set of TCCYP51 inhibitors has been identified using optical high throughput screening followed by web-database search for similar structures. The best TCCYP51 inhibitor from this search was found to have structural similarity to a class of cyclooxygenase-2-selective inhibitors, the indomethacin-amides. A number of indomethacin-amides were found to bind to TCCYP51, inhibit its activity in vitro, and produce strong antiparasitic effects in the cultured TC cells. Analysis of TC sterol composition indicated that the mode of action of the compounds is by inhibition of sterol biosynthesis in the parasite.