Abstract
Bioassay-directed fractionation of the leaves of the medicinal plant Isodon xerophilus led to the isolation of a series of potential antitumor molecules. Thirteen new (1-13) and 23 (14-36) known diterpenoids were isolated and identified, representing ent-kauranoids of several structural types. The structures of 1-13 were determined by means of spectroscopic studies. The absolute configurations of the new compounds were clarified by CD spectroscopic studies or were postulated on biogenetic grounds. All compounds obtained were evaluated for their cytotoxic activity against the K562, MKN45, and HepG2 cell lines. Compounds 1, 2, 11, 16-19, 23, 26-28, 30, and 32 demonstrated significant cytotoxic activity for one or more cell lines.
Original language | English |
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Pages (from-to) | 1295-1301 |
Number of pages | 7 |
Journal | Journal of Natural Products |
Volume | 70 |
Issue number | 8 |
DOIs | |
Publication status | Published - 1 Aug 2007 |
Scopus Subject Areas
- Analytical Chemistry
- Molecular Medicine
- Pharmacology
- Pharmaceutical Science
- Drug Discovery
- Complementary and alternative medicine
- Organic Chemistry