REFERENCES
- Backhouse N., Delporte C., Negrete R., Muñoz O. and RuizR. (1994) Antiinflammatory and Antipyretic Activities ofMaytenus boaria. Int.J.Pharmacog. 32: 239–244.
- Bowman W.C. and Rand M.J. (1980) Textbook of Pharma- cology, 2nd Ed. Black, Oxford, pp.13.18–13.22.
- Budzikiewicz H., Wilson J.M. and Djerassi C. (1963) Mass spectrometry in structural and stereochemical problems.
- XXXII. Pentacyclic triterpenes. J. Org. Chem. 85: 3688–3699.
- Gupta M.B., Nath R., Srivastava N., Shanker K., Kishor K. and Bhargava K.P. (1980) Antiinflammatory and antipyretic activities of �-sitosterol. Planta Med. 39: 157–163.
- Karliner J. and Djerassi C. (1966) Terpenoids. LVII Mass spectral and nuclear magnetic resonance studies of penta- cyclic triterpene hydrocarbons. J. Org. Chem. 31: 1945–1956.
- Kohout F. and Norwood G. (1981) Interpretation of research data. analysis of variance. Am. J. Hosp. Pharm. 38: 96–104. Keitio-okai G. and Macrides T.A. (1992) Antilipoxygenase activity of amyrin triterpenes. Res. Commun. Chem.Pathol. Pharmacol. 78: 367–372.
- Marticorena C. and Quezada M. (1985) Catálogo de la Flora Vascular de Chile. Gayana Bot. 42: 1–157.
- Muñoz M., Barrera M. and Meza I. (1981) El Uso Medicinal de Plantas Nativas y Naturalizadas en Chile. Publicación Ocasional N°33, Museo Nacional de Historia Natural, Santiago, Chile, pp. 61–62.
- Nakanishi K. (1962) Infrared Absorption Spectroscopy. Prac- tical, Holden-Day Inc., San Francisco and Nankodo Com- pany Limited, Tokyo, 233 pp.
- Navas L.E. (1976) Flora de la Cuenca de Santiago de Chile. Vol.II, Ed. Universitaria, Universidad de Chile, Santiago, Chile, pp.172–173.
- Ogunkoya L. (1981) Application of mass spectrometry in structural problems in triterpenes. Phytochemistry 20: 121–126.
- Peña, R. Curator of the Herbarium of the School of Chem- istry and Pharmacy, PO Box 6084, 22–Santiago, Chile.
- San Martín,J. (1983) Medicinal plants in central chile. Econ.Bot. 37: 216–227.Singh G.B., Surjeet Singh B.S., Gupta B.D. and Banerjee
- S.K. (1992) Antiinflammatory activity of oleanolic acid in rats and mice. J. Pharm. Pharmacol. 44: 456–458.
- USP XXII (1990) The United States Pharmacopeia. Conven- tion Inc., 1515 pp.
- Williams P. and Burson J. (1985) Industrial Toxicology- Safety and Health Applications in the Work Place. Van Nostrand Reinhold, New York. p.14.
- Winter C.A., Risley E.A. and Nuss G.W. (1963) Antiinflam- matory and antipyretic activities of indomethacin, 1–(p- chlorobenzoyl)-5–methoxy-2–methyl indole-3–acetic acid. J. Pharmacol. Exper. Therap. 141: 369–373.