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(+)‐ and (−)‐Xanchryones F and G ((+)‐ and (−)‐1 and 2) were isolated from the plant Xanthostemon chrysanthus by chiral separation. Compounds 1 and 2 featured a new carbon skeleton with cinnamoyltriketone‐flavone adducts. Their structures with absolute configurations were elucidated by detailed spectroscopic analyses and chemical calculations. The antibacterial and anti‐inflammatory activities of...
Front Cover. The plant Xanthostemon chrysanthus (Myrtaceae) is widely distributed in northern Australia and southeast Asia. In a search for structurally unique and bioactive natural products from Myrtaceae plants, the first examples of cinnmaoyltriketone‐flavone adducts with new skeleton, (+)‐ and (−)‐xanchryones F and G ((+)‐ and (−)‐1 and 2), were obtained by chiral HPLC from X. chrysanthus. These...
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