K. van Emelen, T. de Wit, G. Hoornaert
Sep 9, 2000
Citations
0
Influential Citations
28
Citations
Journal
Organic letters
Abstract
Indanol intermediates 5, prepared via Michael addition of 1-indanone beta-ketoester and acrylonitrile followed by reduction or Grignard reaction of the ketone group, were submitted to intramolecular Ritter reaction using various acid reaction conditions to produce tricyclic lactams 4. This cis-fused hexahydro-4aH-indeno[1,2-b]pyridine ring system, substituted at both angular positions 4a and 9b, provides access to constrained analogues of non-peptide NK(1)-antagonists with monocyclic piperidine structure.