Synthesis and structure–activity relationship of imidazo[1,2-a]benzimidazoles as corticotropin-releasing factor 1 receptor antagonists
摘要:
8-Aryl-1,3a,8-triaza-cyclopenta[a]indenes represent a novel series of high binding affinity corticotropin-releasing factor 1 receptor antagonists. Here, we report their synthesis, SAR, and pharmacokinetic properties of compound 8e (K-i = 23 nM). (c) 2005 Elsevier Ltd. All rights reserved.
Synthesis, structure–activity relationships, and anxiolytic activity of 7-aryl-6,7-dihydroimidazoimidazole corticotropin-releasing factor 1 receptor antagonists
作者:Xiaojun Han、Jodi A. Michne、Sokhom S. Pin、Kevin D. Burris、Lynn A. Balanda、Lawrence K. Fung、Tracey Fiedler、Kaitlin E. Browman、Matthew T. Taber、Jie Zhang、Gene M. Dubowchik
DOI:10.1016/j.bmcl.2005.05.117
日期:2005.9
7-Aryl-6,7-dihydroimidazoimidazoles represent a novel series of high-affinitycorticotropin-releasing factor 1 receptorantagonists. Here, we report their synthesis and SAR as well as behavioral activity of two exemplary compounds, 7b and 7k, in a mouse canopy model of anxiety.
Discovery of 6-chloro-2-trifluoromethyl-7-aryl-7H-imidazo[1,2-a]imidazol-3-ylmethylamines, a novel class of corticotropin-releasing factor receptor type 1 (CRF1R) antagonists
作者:Dmitry Zuev、Vivekananda M. Vrudhula、Jodi A. Michne、Bireshwar Dasgupta、Sokhom S. Pin、Xiaohua Stella Huang、Dedong Wu、Qi Gao、Jie Zhang、Matthew T. Taber、John E. Macor、Gene M. Dubowchik
DOI:10.1016/j.bmcl.2010.04.094
日期:2010.6
A novel series of [6-chloro-2-trifluoromethyl-7-aryl-7H-imidazo[1,2-a]imidazol-3-ylmethyl]-dialkylamines was discovered as potent CRF1R antagonists. The optimization of binding affinity in the series by the parallel reaction approach is discussed herein. (c) 2010 Elsevier Ltd. All rights reserved.
2-Aminopyrazolo[1,5-a]pyrimidines as potent and selective inhibitors of JAK2
作者:Mark W. Ledeboer、Albert C. Pierce、John P. Duffy、Huai Gao、David Messersmith、Francesco G. Salituro、Suganthini Nanthakumar、Jon Come、Harmon J. Zuccola、Lora Swenson、Dina Shlyakter、Sudipta Mahajan、Thomas Hoock、Bin Fan、Wan-Jung Tsai、Elaine Kolaczkowski、Scott Carrier、James K. Hogan、Richard Zessis、S. Pazhanisamy、Youssef L. Bennani
DOI:10.1016/j.bmcl.2009.10.053
日期:2009.12
Constitutive activation of the EPO/JAK2 signaling cascade has recently been implicated in a variety of myeloproliferative disorders including polycythemia vera, essential thrombocythemia and myelofibrosis. In an effort to uncover therapeutic potential of blocking the EPO/JAK2 signaling cascade, we sought to discover selective inhibitors that block the kinase activity of JAK2. Herein, we describe the discovery and structure based optimization of a novel series of 2-amino-pyrazolo[1,5-a]pyrimidines that exhibit potent inhibition of JAK2. (C) 2009 Elsevier Ltd. All rights reserved.
Functionalized 6-(Piperidin-1-yl)-8,9-Diphenyl Purines as Peripherally Restricted Inverse Agonists of the CB1 Receptor
Peripherally restricted CB1 receptor antagonists may be useful in treating metabolic syndrome, diabetes, liver diseases, and gastrointestinal disorders. Clinical development of the centrally acting CB1 inverse agonist otenabant (1) was halted due to its potential of producing adverse effects. SAR studies of 1 are reported herein with the objective of producing peripherally restricted analogues, Crystal structures of hCB1 and docking studies with 1 indicate that the piperidine group could be functionalized at the 4-position to access a binding pocket that can accommodate both polar and nonpolar groups. The piperidine is studied as a linker, functionalized with alkyl, heteroalkyl, aryl, and heteroaryl groups using a urea connector. Orally bioavailable and peripherally selective compounds have been produced that are potent inverse agonists of hCB1 with exceptional selectivity for hCB1 over hCB2. Compound 38 blocked alcohol-induced liver steatosis in mice and has good ADME properties for further development.