1. Flavor and fragrance substances. (a) Arnarp, J.; Dahlin, B. M.; Enzell, C. R.; Pettersson, T.; Weidemann, G. Acta Chem. Scand. 1991, 45, 105. (b) Kaiser, R.; Lamparsky, D.; Schudel, P. J. Agric. Food Chem. 1975, 23, 943. (c) Gianturco, M. A.; Friedel, P.; Krampl, V.; Radford, T.; Renner, J. A.; Shephard, F. W. J. Agric. Food Chem. 1971, 19, 530. (d) Pittet, A. O.; Rittersbacher, P.; Muralidhara, R. J. Agric. Food Chem. 1970, 18, 929.
2. Sesquiterpenes. Guianolides: (a) De Hernandez, Z. N. J.; Hernandez, L. R.; Catalan, C. A. N.; Gedris, T. E.; Herz, W. Phytochemistry 1997, 46, 721. Pipitzols: (b) Joseph-Nathan, P.; Roman, L. U.; Hernandez, J. D.; Taira, Z.; Watson, W. H. Tetrahedron 1980, 36, 731. Deodardione: (c) Krishnappa, S.; Dev, S. Tetrahedron 1978, 34, 599.
3. Diterpenes. Abietanes: (a) Ulubelen, A.; Topcu, G.; Chai, H.-B.; Pezzoto, J. M. Pharm. Biol. (Lisse, Neth.) 1999, 37, 148. (b) Topcu, G.; Ulubelan, A. J. Nat. Prod. 1996, 59, 734. neo-Clerodanes: (c) Rodriguez-Hahn, L.; Esquivel, B.; Cardenas, J. Prog. Chem. Org. Nat. Prod. 1994, 63, 107. (d) Carreiras, M. C.; Rodriguez, B.; Piozzi, F.; Savona, G.; Torres, M. R.; Perales, A. Phytochemistry 1989, 28, 1453. Pygmaeocine E: (e) Meng, Q.; Zhu, N.; Chen, W. Phytochemistry 1988, 27, 1151.
4. Degraded triterpenes. Bruceantin and the quassinoids: (a) Okano, M.; Fukamiya, N.; Lee, K. H. In Studies in Natural Product Chemistry, Structure and Chemistry (Part A); Atta-ur-Rahman, Ed.; Elsevier: Amsterdam, 1990; Vol. 7, pp. 369–404. (b) Polonsky, J. Prog. Chem. Org. Nat. Prod. 1985, 47, 221. Cucurbitacins: (c) Galindo, A.; Villegas, N.; Mansilla, H. Nat. Prod. Lett. 1999, 13, 285. (d) Hylands, P. J.; Mansour, E.-S. S. J. Chem. Soc., Perkin Trans. 1 1983, 2821. (e) Lavie, D.; Glotter, E. Fortschr. Chem. Org. Naturst. 1971, 29, 307. Limonoids: (e) Taylor, D. A. H. Prog. Chem. Org. Nat. Prod. 1984, 45, 1 (see p. 61).
5. Steroids. Solanudine alkaloid: (a) Usubillaga, A. Phytochemistry 1988, 27, 3031. Bufadienolides and cardenolides: (b) Chen, R. F.; Abe, F.; Yamauchi, T.; Taki, M. Phytochemistry 1987, 26, 2351. (c) Spengel, S.; Linde, H. H. A.; Meyer, K. Helv. Chim. Acta 1973, 56, 2827. 4-Hydroxy-3-keto-Δ4 steroids are inhibitors of aromatase: (d) Brodie, A. M. H.; Garrett, W. M.; Hendrickson, J. R.; Tsai-Morris, C.-H.; Marcotte, P. A.; Robinson, C. H. Steroids 1981, 38, 693. (e) Martin, M. B.; Mateos, A. F.; Gonzalez, R. R. J. Chem. Soc., Perkin Trans. 1 1995, 569.