Discovery of a novel selective PPARγ modulator from (−)-Cercosporamide derivatives
摘要:
In an investigation of (-)-Cercosporamide derivatives with a plasma glucose-lowering effect, we found that N-benzylcarboxamide derivative 4 was a partial agonist of PPAR gamma. A SAR study of the substituents on carboxamide nitrogen afforded the N-(1-naphthyl) methylcarboxamide derivative 23 as the most potent selective PPAR gamma modulator. An X-ray crystallography study revealed that compound 23 bounded to the PPAR gamma ligand binding domain in a unique way without any interaction with helix12. Compound 23 displayed a potent plasma glucose-lowering effect in db/db mice without the undesirable increase in body fluid and heart weight that is typically observed when PPAR gamma full agonists are administrated. (C) 2010 Elsevier Ltd. All rights reserved.
(−)-Cercosporamide derivatives as novel antihyperglycemic agents
摘要:
In our exploratory campaign for an antihyperglycemic agent with a novel mechanism of action, (-)-Cercosporamide 1, which is known as an antifungal agent, showed a potent plasma glucose lowering effect in hyperglycemic KK/Ta mice. The trouble was that it was accompanied by a decrease in food intake and a loss of body weight. We synthesized some (-)-Cercosporamide derivatives and succeeded to separate these actions. N,O-ketal type derivatives, especially compound 10, had the most potent plasma glucose lowering effect without affecting the food consumption or body weight. (C) 2008 Elsevier Ltd. All rights reserved.
In an investigation of (-)-Cercosporamide derivatives with a plasma glucose-lowering effect, we found that N-benzylcarboxamide derivative 4 was a partial agonist of PPAR gamma. A SAR study of the substituents on carboxamide nitrogen afforded the N-(1-naphthyl) methylcarboxamide derivative 23 as the most potent selective PPAR gamma modulator. An X-ray crystallography study revealed that compound 23 bounded to the PPAR gamma ligand binding domain in a unique way without any interaction with helix12. Compound 23 displayed a potent plasma glucose-lowering effect in db/db mice without the undesirable increase in body fluid and heart weight that is typically observed when PPAR gamma full agonists are administrated. (C) 2010 Elsevier Ltd. All rights reserved.
(−)-Cercosporamide derivatives as novel antihyperglycemic agents
In our exploratory campaign for an antihyperglycemic agent with a novel mechanism of action, (-)-Cercosporamide 1, which is known as an antifungal agent, showed a potent plasma glucose lowering effect in hyperglycemic KK/Ta mice. The trouble was that it was accompanied by a decrease in food intake and a loss of body weight. We synthesized some (-)-Cercosporamide derivatives and succeeded to separate these actions. N,O-ketal type derivatives, especially compound 10, had the most potent plasma glucose lowering effect without affecting the food consumption or body weight. (C) 2008 Elsevier Ltd. All rights reserved.