Design, Synthesis, and Evaluation of Proline and Pyrrolidine Based Melanocortin Receptor Agonists. A Conformationally Restricted Dipeptide Mimic Approach
作者:Xinrong Tian、Timothy B. Field、Adrian G. Switzer、Adam W. Mazur、Frank H. Ebetino、John A. Wos、Steve M. Berberich、Lalith R. Jayasinghe、Cindy M. Obringer、Martin E. Dowty、Beth B. Pinney、Julie A. Farmer、Doreen Crossdoersen、Russell J. Sheldon
DOI:10.1021/jm060384p
日期:2006.7.1
hMC4R. Potent cis-(2S,4R)-pyrrolidine based MCR agonists (35a-g) were subsequently developed by means of this design approach. A SAR study directed toward probing the effect of the two chiral centers in the pyrrolidine ring on biological activity revealed the importance of the (S) absolute configuration at the 2-position for binding affinity, agonist potency, and receptor selectivity. Among the four
描述了一系列新型脯氨酸和吡咯烷类黑皮质素受体(MCR)激动剂的设计,合成和构效关系(SAR)。为了验证构象受限的Arg-Nal二肽类似物策略,我们首先合成并评估了顺-(2R,4R)-脯氨酸类似物(21a-g)的测试集。所有这些化合物在hMC1R,hMC3R和hMC4R上均显示出显着的结合和激动剂效能。随后通过这种设计方法开发了基于顺-(2S,4R)-吡咯烷的强效MCR激动剂(35a-g)。一项旨在探索吡咯烷环中两个手性中心对生物活性影响的SAR研究表明,在2位上的(S)绝对构型对于结合亲和力,激动剂效能和受体选择性很重要。