1. For reviews of sesquiterpenes: (a) Fischer, N. H.; Olivier, E. J.; Fischer, H. D. InProgress in the Chemistry of Organic Natural Products; Herz, W., Kirby, G. W., Moore, R. E., Steglich, W., Tamm, Ch., Eds.; Springer-Verlag: New York, 1979; Vol. 38, pp 47−390. (b) Ghisalberti, E. L.Phytochemistry1994,37, 597−623. (c) Gonzalez, A. G.; Bermejo Barrera, J. InProgress in theChemistry of Organic Natural Products; Herz, W., Kirby, G. W., Moore, R. E., Steglich, W., Tamm, Ch., Eds.; Springer-Verlag: New York, 1995; Vol. 64, pp 1−92. (d) Christensen, S. B.; Andersen, A.; Smitt, U. W. InProgress in theChemistry of Organic Natural Products; Herz, W., Kirby, G. W., Moore, R. E., Steglich, W., Tamm, Ch., Eds.; Springer-Verlag: New York, 1997; Vol. 71, pp 129−167. (e) Daniewski, W. M.; Vidari. InProgress in the Chemistry ofOrganic Natural Products; Herz, W., Falk, H., Kirby, G. W., Moore, R. E., Tamm, Ch., Eds.; Springer-Verlag: New York, 1999; Vol. 77, pp 69−121. (f) Fraga, B. M.Nat. Prod. Rep.2000,17, 483−504 and previous articles in this annual series.