7-Substituted 2-Azabicyclo[2.2.1]heptanes as Key Intermediates for the Synthesis of Novel Epibatidine Analogues; Synthesis of <i>s</i><i>yn- </i>and <i>a</i><i>nti-</i>Isoepiboxidine
作者:John R. Malpass、Richard White
DOI:10.1021/jo0492564
日期:2004.8.1
Neighboring group participation by the 2-nitrogen in anti-7-bromo-2-benzyl-2-azabicyclo[2.2.1]heptane allows ready nucleophilic substitution at the 7-position by C, N, O, and halogen nucleophiles and opens the way to a range of novel 7-substituted 2-azabicyclo[2.2.1]heptanes. Conversion of an anti-7-ethoxycarbonyl group into a methylisoxazole ring provides anti-isoepiboxidine, a conversion that is