Synthesis and SAR of 5-Amino- and 5-(Aminomethyl)benzofuran Histamine H<sub>3</sub> Receptor Antagonists with Improved Potency
作者:Minghua Sun、Chen Zhao、Gregory A. Gfesser、Christine Thiffault、Thomas R. Miller、Kennan Marsh、Jill Wetter、Michael Curtis、Ramin Faghih、Timothy A. Esbenshade、Arthur A. Hancock、Marlon Cowart
DOI:10.1021/jm0504398
日期:2005.10.1
A new series of H3receptorantagonists was discovered with nanomolar and subnanomolar affinities at human and rat H3receptors. Starting from an earlier, more structurally limited series of benzofurans, the present series of compounds demonstrated increased structural variety and flexibility with greater in vitro potency. One compound in particular, [2-[2-(2-(R)-methylpyrrolidin-1-yl)ethyl]benzof
Pd(0)-mediated coupling between iodoarenes, [11C]carbonmonoxide and aryltributylstannanes has been used to prepare simple model [11C]aryl ketones. Here, we aimed to label four 2-aminoethylbenzofuran chemotype based molecules ([11C]1-4) in the carbonyl position, as prospective positron emission tomography (PET) radioligands for the histamine subtype 3 receptor (H3R) by adapting this methodology with