Synthesis and structure–activity relationships of ( R )-1-alkyl-3-[2-(2-amino)phenethyl]-5-(2-fluorophenyl)-6-methyluracils as human GnRH receptor antagonists
作者:Martin W Rowbottom、Fabio C Tucci、Yun-Fei Zhu、Zhiqiang Guo、Timothy D Gross、Greg J Reinhart、Qui Xie、R.Scott Struthers、John Saunders、Chen Chen
DOI:10.1016/j.bmcl.2004.02.004
日期:2004.5
The synthesis of a series of (R)-1-alkyl-3-[2-(2-amino)phenethyl]-5-(2-fluorophenyl)-6-methyluracils is discussed. SAR around N-1 of the uracil was explored, which led to the discovery that an electron-deficient 2,6-disubstituted benzyl group is required for optimal receptor binding. The best compound from the series had binding affinity of 0.7 nM (K-i) for the human GnRH receptor, which was 8-fold better than the 2,6-difluorobenzyl analog. (C) 2004 Elsevier Ltd. All rights reserved.