Synthetic Studies in the Alkaloid Field. Part VIII. The Sodium Borohydride Reduction of 3-Acetyl-1-[2-(3-indolyl)-ethyl]pyridinium Bromide.

Abstract
The preparation of 3 isomeric acetylhexahydroindolo[2,3-a]-quinolizines by the sodium borohydride reduction of 3-acetyl-1-[2-(3-indolyl)ethyl]pyridinium bromide, followed by acid-induced cyclization, is described.