Synthesis of novel 3-amino and 29-hydroxamic acid derivatives of glycyrrhetinic acid as selective 11β-hydroxysteroid dehydrogenase 2 inhibitors
摘要:
Glycyrrhetinic acid, the metabolite of the natural product glycyrrhizin, is a well known nonselective inhibitor of 11 beta-hydroxysteroid dehydrogenase (11 beta-HSD) type 1 and type 2. Whereas inhibition of 11 beta-HSD1 is currently under consideration for treatment of metabolic diseases, such as obesity and diabetes, 11 beta-HSD2 inhibitors may find therapeutic applications in chronic inflammatory diseases and certain forms of cancer. So far, no selective 11 beta-HSD2 inhibitor has been developed and neither animal studies nor clinical trials have been reported based on 11 beta-HSD2 inhibition. Starting from the lead compound glycyrrhetinic acid, novel triterpene type derivatives were synthesized and analyzed for their biological activity against overexpressed human 11 beta-HSD1 and 11 beta-HSD2 in cell lysates. Several hydroxamic acid derivatives showed high selectivity for 11 beta-HSD2. The most potent and selective compound is active against human 11 beta-HSD2 in the low nanomolar range with a 350-fold selectivity over human 11 beta-HSD1. (C) 2010 Elsevier Ltd. All rights reserved.
Synthesis of glycyrrhetinic acid derivatives for the treatment of metabolic diseases
摘要:
The effect of glycyrrhetinic acid (GA) and GA-derivatives towards 11 beta-hydroxysteroid dehydrogenase (11 beta-HSD) was investigated. Novel compounds with modi. cations at positions C-3, C-11 and C-29 of the GA skeleton were prepared. Single crystal X-ray diffraction data of selected substances are reported and discussed. (C) 2009 Elsevier Ltd. All rights reserved.