Regioselective functionalization. .beta. Substituent effects on the regioselectivity of Baeyer-Villiger oxidations of 3-substituted 2-azabicyclo[2.2.2]octan-5-ones (isoquinuclidin-5-ones)
Nitrogen bridge homoepibatidines. syn-6- and syn-5(6-chloro-3-pyridyl)isoquinuclidines
作者:Grant R. Krow、Osbert H. Cheung、Zilun Hu、Qiuli Huang、John Hutchinson、Nian Liu、Kevin T. Nguyen、Scott Ulrich、Jing Yuan、Yushi Xiao、Donna M. Wypij、Fangming Zuo、Patrick J. Carroll
DOI:10.1016/s0040-4020(99)00411-1
日期:1999.6
The N-bridge vicinal-6(6-Cl-3-pyridyl) and distal 6-(6-Cl-3-pyridyl)-2-azabicyclo[2.2.2]octane homologs of the potent nicotinic receptor agonist epibatidine have been synthesized. Key steps involve stereoselective catalytic hydrogenations of both 6- and 5-(6-Cl-3-pyridyl)-2-azabicyclo[2.2.2]oct-5-enes 12 and 17 on the face anti to the nitrogen containing bridges. The vicinal homolog appears to be a potent nicotinic agonist. (C) 1999 Elsevier Science Ltd. All rights reserved.
KROW G. R.; JOHNSON C., SYNTHESIS, 1979, NO 1, 50-51
作者:KROW G. R.、 JOHNSON C.
DOI:——
日期:——
Regioselective functionalization. .beta. Substituent effects on the regioselectivity of Baeyer-Villiger oxidations of 3-substituted 2-azabicyclo[2.2.2]octan-5-ones (isoquinuclidin-5-ones)
作者:Grant R. Krow、Constance A. Johnson、James P. Guare、Dennis Kubrak、Kenneth J. Henz、Donald A. Shaw、Steven W. Szczepanski、James T. Carey