In-Line Proximity Effects in Extended 7-Azanorbornanes. 1. A New Concept for Modifying Effector Group Separation Based on the Control of <i>N</i>-Invertomer Geometry
作者:Douglas N. Butler、Malcom L. A. Hammond、Martin R. Johnston、Guangxing Sun、John R. Malpass、John Fawcett、Ronald N. Warrener
DOI:10.1021/ol9910969
日期:2000.3.1
Control of N-substituent geometry in fused 7-azanorbornane systems is based on the dominance of one proximate bridge (sentinel X) over the other (sentinel Y) relative to the N-bridge; the N-inversion equilibrium can effectively be displaced in favor of a single invertomer. This study has used a combination of synthesis, crystallography, and molecular modeling to establish stereostructures.