Discovery of Orally Bioavailable 1,3,4-Trisubstituted 2-Oxopiperazine-Based Melanocortin-4 Receptor Agonists as Potential Antiobesity Agents
作者:Xinrong Tian、Adrian G. Switzer、Steve A. Derose、Rajesh K. Mishra、Mark G. Solinsky、Rashid N. Mumin、Frank H. Ebetino、Lalith R. Jayasinghe、Mark E. Webster、Anny-Odile Colson、Doreen Crossdoersen、Beth B. Pinney、Julie A. Farmer、Martin E. Dowty、Cindy M. Obringer、Charles A. Cruze、Melissa L. Burklow、Paula M. Suchanek、Lily Dong、Mary Kay Dirr、Russell J. Sheldon、John A. Wos
DOI:10.1021/jm800525p
日期:2008.10.9
highly basic guanidine moiety contained in potent MC4R agonists, as exemplified by 1, led to the discovery of initial nonguanidine lead 5. Propyl analog 23 was subsequently found to be equipotent to 5, whereas analogs bearing smaller and branched alkyl groups at the 3 position of the oxopiperazine template demonstrated reduced binding affinity and agonist potency for MC4R. Acylation of the NH2 group of the