Quantitative determination of cytotoxic friedo-nor-oleanane derivatives from five morphological types of Maytenus ilicifolia (Celastraceae) by reverse-phase high-performance liquid chromatography
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Wiley-Blackwell
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Wiley
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Five different morphological types of Maytenus ilicifolia of the same age and harvested under the same conditions showed distinct accumulations of some friedo-nor-oleananes. A rapid, sensitive and reliable reverse-phase HPLC method (employing an external standard) was used for the determination of the cytotoxic triterpenoids, 20alpha-hydroxymaytenin, 22beta-hydroxymaytenin, maytenin, celastrol and pristimerin in each of the five types. Well resolved peaks with good detection response and linearity in the range 1.0-100 mug/mL were obtained. Copyright (C) 2002 John Wiley Sons, Ltd.
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Phytochemical Analysis. W Sussex: John Wiley & Sons Ltd, v. 13, n. 2, p. 75-78, 2002.
