Optimization of the 4-aryl group of 4-aryl-pyridine glucagon antagonists: development of an efficient, alternative synthesis
作者:Roger A. Smith、Donald L. Hertzog、Martin H. Osterhout、Gaetan H. Ladouceur、Mary Korpusik、Mark A. Bobko、J.Howard Jones、Kathleen Phelan、Romulo H. Romero、Thomas Hundertmark、Margit L. MacDougall、James N. Livingston、William R. Schoen
DOI:10.1016/s0960-894x(02)00143-9
日期:2002.5
A narrow structure-activity relationship was established for the 4-aryl group in 4-aryl-pyridine glucagon antagonists, with only small substituents being well-tolerated, and only at the 3'- and 4'-positions. However, substitution with a 2'-hydroxy group gave a ca. 3-fold increase in activity (e.g., 4'-fluoro-2'-hydroxy analogue 33, IC50 = 190 nM). For efficient preparation of 2'-substituted phenylpyridines, a novel synthesis via pyrones and 4-methoxy-pyridines was developed. (C) 2002 Elsevier Science Ltd. All rights reserved.