Novel isoxazole carboxamides as growth hormone secretagogue receptor (GHS-R) antagonists
摘要:
Novel isoxazole carboxamides have been identified as growth hormone secretagogue receptor (GHS-R) antagonists. Substituent modification off the 5-position of the isoxazole ring led to analogues with potent binding affinity and functional antagonism of GHS-R. A potent analogue (32) with high aqueous solubility and good GPCR selectivity was also identified as a potential pharmacological tool for in vivo studies. (C) 2004 Elsevier Ltd. All rights reserved.
Novel isoxazole carboxamides as growth hormone secretagogue receptor (GHS-R) antagonists
作者:Bo Liu、Gang Liu、Zhili Xin、Micheal D. Serby、Hongyu Zhao、Verlyn G. Schaefer、H. Douglas Falls、Wiweka Kaszubska、Christine A. Collins、Hing L. Sham
DOI:10.1016/j.bmcl.2004.06.060
日期:2004.10
Novel isoxazole carboxamides have been identified as growth hormone secretagogue receptor (GHS-R) antagonists. Substituent modification off the 5-position of the isoxazole ring led to analogues with potent binding affinity and functional antagonism of GHS-R. A potent analogue (32) with high aqueous solubility and good GPCR selectivity was also identified as a potential pharmacological tool for in vivo studies. (C) 2004 Elsevier Ltd. All rights reserved.
Studies on Pyrethrins The Synthesis of Some β-Keto Esters
from methyl ketones, sodamide and diethyl carbonate using these reagents in the molar ratio of 1:3:3 is reported. The yields of β-keto esters approach to those of the preparation using sodiumhydride as condensingagent. Furthermore, some cyclopentenolones were prepared from the β-keto esters synthesized by this-procedure.