Discovery and Structure–Activity Relationships of Pyrrolone Antimalarials
作者:Dinakaran Murugesan、Alka Mital、Marcel Kaiser、David M. Shackleford、Julia Morizzi、Kasiram Katneni、Michael Campbell、Alan Hudson、Susan A. Charman、Clive Yeates、Ian H. Gilbert
DOI:10.1021/jm400009c
日期:2013.4.11
In the pursuit of new antimalarial leads, a phenotypic screening of various commercially sourced compound libraries was undertaken by the World Health Organisation Programme for Research and Training in Tropical Diseases (WHO-TDR). We report here the detailed characterization of one of the hits from this process, TDR32750 (8a), which showed potent activity against Plasmodium falciparum K1 (EC50 similar to 9 nM), good selectivity (>2000-fold) compared to a mammalian cell line (L6), and significant activity against a rodent model of malaria when administered intraperitoneally. Structure-activity relationship studies have indicated ways in which the molecule could be optimized. This compound represents an exciting start point for a drug discovery program for the development of a novel antimalarial.
609. The chemistry of carcinogenic nitrogen-compounds. Part III. Polysubstituted pyrroles and indoles as potential cocarcinogens
作者:Ng.Ph. Buu-Hoï
DOI:10.1039/jr9490002882
日期:——
US4904578A
申请人:——
公开号:US4904578A
公开(公告)日:1990-02-27
A New FXR Ligand Chemotype with Agonist/Antagonist Switch
Starting from a weak FXR/PPAR agonist, we have developed selectiveFXR activators and antagonists with nanomolar to low-micromolar potencies and binding affinities. The new FXRligand chemotype modulates the FXR activity in the native cellular setting, is endowed with favorable metabolic stability, and lacks cytotoxicity. It valuably expands the collection of FXRmodulators as a new scaffold for FXR-targeted