1. I. Baxter, L. T. Allan, and G. A. Swan, J. Chem. Soc., 3645 (1965).
2. A. Brossi, J. Van Burik, and S. Teitel, Helv. Chim. Acta, in press.
3. Presented in part by one of us (A.B.) at the Joint Meeting on the Chemistry of Natural Products, Fredericton, Canada, August 26-28, 1968.
4. We are grateful to our colleague Dr. F. Schcnker of these laboratories for suggesting acetonitrile as a solvent superior to chloroform in Bischler-Napieralski cyclizations.