Prenylates Xanthones from Garcinia xanthochymus.
✍ Scribed by Wisinee Chanmahasathien; Yushan Li; Masayuki Satake; Yasukatsu Oshima; Masami Ishibashi; Nijsiri Ruangrungsi; Yasushi Ohizumi
- Publisher
- John Wiley and Sons
- Year
- 2004
- Weight
- 62 KB
- Volume
- 35
- Category
- Article
- ISSN
- 0931-7597
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## Abstract A new xanthone derivative, garcinexanthone F (**1**), which was found to possess an __α__,__β__‐unsaturated __γ__‐lactone moiety, and a new bisxanthone, bigarcinenone B (**2**), with a terpene bridge providing the xanthonexanthone linkage, were isolated from the bark of __Garcinia xant
Three novel prenylated xanthones, 1-3, have been isolated from the root bark of Carcinragerrardii HARVEY ex T. R. SIM (G. natalensis SCHLECHTEK; G. transuaalensis BUKTT DAVY; Guttiferae). Structure elucidation was achieved by a combination of one-and two-dimensional NMR spectroscopic techniques, inc
## Abstract Three new hydroxylated xanthones with prenyl or geranyl substituents, compounds **1**–**3**, were isolated from the twig bark of __Garcinia xanthochymus__, along with the four known compounds 1,4,5,6‐tetrahydroxy‐7,8‐diprenylxanthone (**4**), 1,3,5,6‐tetrahydroxy‐4,7,8‐triprenylxanthone