A facile and regioselective synthesis of rimonabant through an enamine-directed 1,3-dipolar cycloaddition
作者:Sean R. Donohue、Christer Halldin、Victor W. Pike
DOI:10.1016/j.tetlet.2008.02.132
日期:2008.4
treatment for obesity. Current methods of synthesis require several steps that have long reaction times and/or lack regioselectivity. Here we present a novel, regioselective synthesis of rimonabant though an enamine-directed 1,3-dipolar cycloaddition. In addition, we present a new and more reactive hydrazonoyl halide for the generation of the requisite nitrile imine dipole.