1. Bovill, M. J., Guy, M. H. P., Sim, G. A., White, D. N. J., and Herz, W. (1979)J.C.S. Perkin 2, 53.
2. Daniewski, W. M., Nowak, G., Routsi, E., Rychlewska, U., Szczepańska, B., and Skibicki, P. (1992)Phytochemistry, submitted for publication.
3. Fischer, N. H., Olivier, E. J., and Fischer, H. D. (1979) InProgress in the Chemistry of Organic Natural Products, Vol. 38, W. Herz, H. Griesebach, and G. W. Kirby (eds.) (Springer Verlag, Vienna/New York).
4. Fronczek, F. R., Vargas, D., Parodi, F. J., and Fischer, N. H. (1989)Acta Crystallogr. C 45, 1829.
5. Johnson, C. K. (1965)ORTEP. Report ORNL-3794. (Oak Ridge National Laboratory, Tenn.).