8-(4-Methoxyphenyl)pyrazolo[1,5-<i>a</i>]-1,3,5-triazines: Selective and Centrally Active Corticotropin-Releasing Factor Receptor-1 (CRF<sub>1</sub>) Antagonists
作者:Paul J. Gilligan、Liqi He、Todd Clarke、Parcharee Tivitmahaisoon、Snjezana Lelas、Yu-Wen Li、Karen Heman、Lawrence Fitzgerald、Keith Miller、Ge Zhang、Anne Marshall、Carol Krause、John McElroy、Kathyrn Ward、Helen Shen、Harvey Wong、Scott Grossman、Gregory Nemeth、Robert Zaczek、Stephen P. Arneric、Paul Hartig、David W. Robertson、George Trainor
DOI:10.1021/jm9000242
日期:2009.5.14
This report describes the syntheses and structure-activity relationships of 8-(4-methoxyphenyl)pyrazolo[1,5-a]-1,3,5-triazine corticotropin releasing factor receptor-1 (CRF1) receptor antagonists. CRF1 receptor antagonists may be potential anxiolytic or antidepressant drugs. This research culminated in the discovery of analogue 12-3. which is a potent, selective CRF1 antagonist (hCRF(1) IC50 = 4.7 +/- 2.0 nM) with weak affinity for the CRF-binding protein and biogenic amine receptors. This compound also has a good pharmacokinetic profile in dogs. Analogue 12-3 is orally effective in two rat models of anxiety: the defensive withdrawal (situational anxiety) model and the elevated plus maze test. Analogue 12-3 has been advanced to clinical trials.