Total synthesis of a noricumazole A library and evaluation of HCV inhibition

authored by
Jenny Barbier, Jens Wegner, Stefan Benson, Juliane Gentzsch, Thomas Pietschmann, Andreas Kirschning
Abstract

The total synthesis of 16 new ion channel inhibitors derived from noricumazole A, a secondary metabolite from the myxobacterium Sorangium cellulosum, is reported. Particular focus of library design is put on stereochemical permutations in the central region (C9 and C11), the oxazole moiety and the side chain at C4 of the isochromanone moiety. Noricumazole A and all new noricumazole derivatives were tested in an assay system with inhibitory effect on the hepatitis C virus (HCV) life cycle. Most of them are moderate to strong HCV inhibitors (350 nM-6 nM) but also exert pronounced cytotoxicity. In contrast, the thiazole analogue of noricumazole A is a strong HCV inhibitor with only moderate cytotoxic property. It may become a lead structure with a good therapeutic index (CC 50/IC 50) of greater than 10.

Organisation(s)
Institute of Organic Chemistry
Centre of Biomolecular Drug Research (BMWZ)
External Organisation(s)
TWINCORE Zentrum für Experimentelle und Klinische Infektionsforschung GmbH
Type
Article
Journal
Chemistry - A European Journal
Volume
18
Pages
9083-9090
No. of pages
8
ISSN
0947-6539
Publication date
13.06.2012
Publication status
Published
Peer reviewed
Yes
ASJC Scopus subject areas
Catalysis, Organic Chemistry
Sustainable Development Goals
SDG 3 - Good Health and Well-being
Electronic version(s)
https://doi.org/10.1002/chem.201104042 (Access: Unknown)