Novel pyrrolobenzoxaboroles: Design, synthesis, and biological evaluation against Trypanosoma brucei
摘要:
Human African trypanosomiasis is a fatal parasitic infection caused by the protozoan Trypanosoma brucei. The development of novel antitrypanosomal agents is urgently needed. Here we report the synthesis and structure-activity relationship of a new class of benzoxaboroles as antitrypanosomal agents. These compounds showed antiparasitic IC50 values ranging from 4.02 to 0.03 mu g/mL and satisfactory cytotoxicity profile. Three of the lead compounds were demonstrated to cure the parasitic infection in a murine acute infection model. The structure activity relationship of the pyrrolobenzoxaboroles are also discussed. (C) 2014 Elsevier Masson SAS. All rights reserved.
Novel pyrrolobenzoxaboroles: Design, synthesis, and biological evaluation against Trypanosoma brucei
摘要:
Human African trypanosomiasis is a fatal parasitic infection caused by the protozoan Trypanosoma brucei. The development of novel antitrypanosomal agents is urgently needed. Here we report the synthesis and structure-activity relationship of a new class of benzoxaboroles as antitrypanosomal agents. These compounds showed antiparasitic IC50 values ranging from 4.02 to 0.03 mu g/mL and satisfactory cytotoxicity profile. Three of the lead compounds were demonstrated to cure the parasitic infection in a murine acute infection model. The structure activity relationship of the pyrrolobenzoxaboroles are also discussed. (C) 2014 Elsevier Masson SAS. All rights reserved.
Development of a Kilogram-Scale Asymmetric Synthesis of a Potent DP Receptor Antagonist
作者:Matthew Tudge、Cecile G. Savarin、Katherine DiFelice、Peter Maligres、Guy Humphrey、Bob Reamer、David M. Tellers、Dave Hughes
DOI:10.1021/op100008m
日期:2010.7.16
characterized by a novel intramolecular Friedel−Crafts cyclization of an imino-pyrrole to prepare the azaindole core. Other key steps include a highly selective Horner−Wadsworth−Emmons olefination of a tricyclic ketone intermediate and subsequent catalytic asymmetric hydrogenation of a trisubstituted α,β-unsaturated ester to install the chirogenic center. Finally, a new indole sulfenylation protocol