| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5176792 | Phytochemistry Letters | 2014 | 7 Pages |
Abstract
Two new compounds named 8-hydroxy-6-methylxanthone-1-carboxylic acid (1) and 6â²,8-O-dimethylknipholone (2) were isolated from the root of Bulbine frutescens. The structures of six seco-anthraquinones were revised into xanthones. Knipholone and its derivatives showed cytotoxic activity against human cervix carcinoma KB-3-1 cells.
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Authors
Negera Abdissa, Matthias Heydenreich, Jacob O. Midiwo, Albert Ndakala, Zsuzsanna Majer, Beate Neumann, Hans-Georg Stammler, Norbert Sewald, Abiy Yenesew,