Quinazolinone Derivatives as Orally Available Ghrelin Receptor Antagonists for the Treatment of Diabetes and Obesity
摘要:
The peptide hormone ghrelin is the endogenous ligand for the type l a growth hormone secretagogue receptor (GHS-R1a) and the only currently known circulating appetite stimulant. GHS-R1a antagonism has therefore been proposed as a potential approach for obesity treatment. More recently, ghrelin has been recognized to also play a role in controlling glucose-induced insulin secretion, which suggests another possible benefit for a GHS-R1a antagonist, namely, the role as an insulin secretagogue with potential value for diabetes treatment. In our laboratories, piperidine- substituted quinazolinone derivatives were identified as a new class of small-molecule GHS-R1a antagonists. Starting from an agonist with poor oral bioavailability, optimization led to potent, selective, and orally bioavailable antagonists. In vivo efficacy evaluation of selected compounds revealed suppression of food intake and body weight reduction as well as glucose-lowering effects mediated by glucose-dependent insulin secretion.
Quinazolinone Derivatives as Orally Available Ghrelin Receptor Antagonists for the Treatment of Diabetes and Obesity
摘要:
The peptide hormone ghrelin is the endogenous ligand for the type l a growth hormone secretagogue receptor (GHS-R1a) and the only currently known circulating appetite stimulant. GHS-R1a antagonism has therefore been proposed as a potential approach for obesity treatment. More recently, ghrelin has been recognized to also play a role in controlling glucose-induced insulin secretion, which suggests another possible benefit for a GHS-R1a antagonist, namely, the role as an insulin secretagogue with potential value for diabetes treatment. In our laboratories, piperidine- substituted quinazolinone derivatives were identified as a new class of small-molecule GHS-R1a antagonists. Starting from an agonist with poor oral bioavailability, optimization led to potent, selective, and orally bioavailable antagonists. In vivo efficacy evaluation of selected compounds revealed suppression of food intake and body weight reduction as well as glucose-lowering effects mediated by glucose-dependent insulin secretion.
[EN] QUINAZOLINONE DERIVATIVES USEFUL FOR THE REGULATION OF GLUCOSE HOMEOSTASIS AND FOOD INTAKE<br/>[FR] DERIVES DE LA QUINAZOLINONE UTILES POUR LA REGULATION DE L'HOMEOSTASIE DU GLUCOSE ET DE PRISE D'ALIMENTS
申请人:BAYER PHARMACEUTICALS CORP
公开号:WO2006012577A3
公开(公告)日:2006-09-28
Quinazolinone Derivatives as Orally Available Ghrelin Receptor Antagonists for the Treatment of Diabetes and Obesity
作者:Joachim Rudolph、William P. Esler、Stephen O'Connor、Philip D. G. Coish、Philip L. Wickens、Michael Brands、Donald E. Bierer、Brian T. Bloomquist、Georgiy Bondar、Libing Chen、Chih-Yuan Chuang、Thomas H. Claus、Zahra Fathi、Wenlang Fu、Uday R. Khire、James A. Kristie、Xiao-Gao Liu、Derek B. Lowe、Andrea C. McClure、Martin Michels、Astrid A. Ortiz、Philip D. Ramsden、Robert W. Schoenleber、Tatiana E. Shelekhin、Alexandros Vakalopoulos、Weifeng Tang、Lei Wang、Lin Yi、Stephen J. Gardell、James N. Livingston、Laurel J. Sweet、William H. Bullock
DOI:10.1021/jm070071+
日期:2007.10.1
The peptide hormone ghrelin is the endogenous ligand for the type l a growth hormone secretagogue receptor (GHS-R1a) and the only currently known circulating appetite stimulant. GHS-R1a antagonism has therefore been proposed as a potential approach for obesity treatment. More recently, ghrelin has been recognized to also play a role in controlling glucose-induced insulin secretion, which suggests another possible benefit for a GHS-R1a antagonist, namely, the role as an insulin secretagogue with potential value for diabetes treatment. In our laboratories, piperidine- substituted quinazolinone derivatives were identified as a new class of small-molecule GHS-R1a antagonists. Starting from an agonist with poor oral bioavailability, optimization led to potent, selective, and orally bioavailable antagonists. In vivo efficacy evaluation of selected compounds revealed suppression of food intake and body weight reduction as well as glucose-lowering effects mediated by glucose-dependent insulin secretion.