... DIENAhfIDES AS VERSATILE PRECURSORS OF POLYCYCLIC PYRIDINES AND ISOQUIEOLINES Axe1 Couture*, Christophe Bochu and Pierre Grandclaudon Laboratoire de Chimie Organique Physique (UA CNRS N” 351) ... volume XXII, Chapter 4, Arnold Brossi Ed., Academic Press, New York, 1983. 2. C. Bochu, A. Couture, P. Grandclaudon and A. Lablache-Combier, J Chem Sot . ..1... '. ____._.... ? Chem Commun,, 839 (1986) ., . . ...