Bioactive 12-oleanene triterpene and secotriterpene acids from Maytenus undata.

@article{Muhammad2000Bioactive1T,
  title={Bioactive 12-oleanene triterpene and secotriterpene acids from Maytenus undata.},
  author={I. Muhammad and K. E. El Sayed and J. S. Mossa and M. Al-Said and F. El-Feraly and A. Clark and C. D. Hufford and S. Oh and A. Mayer},
  journal={Journal of natural products},
  year={2000},
  volume={63 5},
  pages={
          605-10
        }
}
The aerial parts of Maytenus undata yielded four new 12-oleanene and 3,4-seco-12-oleanene triterpene acids, namely, 3-oxo-11alpha-methoxyolean-12-ene-30-oic acid (1), 3-oxo-11alpha-hydroxyolean-12-ene-30-oic acid (2), 3-oxo-olean-9(11), 12-diene-30-oic acid (3), and 3,4-seco-olean-4(23),12-diene-3, 29-dioic acid (20-epi-koetjapic acid) (5), together with the known 3, 11-dioxoolean-12-ene-30-oic acid (3-oxo-18beta-glycyrrhetinic acid) (4), koetjapic acid (6), and the 12-oleanene artifact 3-oxo… Expand
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