Synthesis of 5- and 6-(6-Chloro-3-pyridyl)-2-azabicyclo[2.2.0]hexanes. Epibatidine Analogs
作者:Grant R Krow、Jing Yuan、Qiuli Huang、Michael D Meyer、David J Anderson、Jeffrey E Campbell、Patrick J Carroll
DOI:10.1016/s0040-4020(00)00896-6
日期:2000.11
Synthetic routes to vicinal-6-(6-Cl-3-pyridyl)- and distal-5-(6-Cl-3-pyridyl)-2-azabicyclo-[2.2.0]hexane analogs of the potent nicotinic receptor agonist epibatidine are described. Both exo-regioisomers are available from a readily available 2-azabicyclo[2.2.0]hex-5-ene by way of stereoselective reductive Heck addition of the 6-Cl-3-pyridyl moiety. Stereochemical inversion of the 6- and 5-aryl groups provides entry to the endo isomers. (C) 2000 Elsevier Science Ltd. All rights reserved.