[GRAPHICS]A rapid and stereoselective access to novel polycyclic indolyidiamines is described. The key step involves simple chemoselective transformations of a common bicyclic aminal intermediate, easily available on a large scale from an enantiomerically pure cyano oxazolopiperIdine precursor.
[GRAPHICS]A rapid and stereoselective access to novel polycyclic indolyidiamines is described. The key step involves simple chemoselective transformations of a common bicyclic aminal intermediate, easily available on a large scale from an enantiomerically pure cyano oxazolopiperIdine precursor.