Journal
JOURNAL OF NATURAL PRODUCTS
Volume 65, Issue 8, Pages 1122-1130Publisher
AMER CHEMICAL SOC
DOI: 10.1021/np020083s
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Phytochemical analysis of Xiphidium caeruleum, a neotropical member of the family Haemodoraceae, resulted in the isolation and identification of a variety of phenylphenalenone related compounds The structures of four new phenylbenzoisochromenones (3, 6, 7, 10), a new phenylbenzoisoquinolinone (4), and two new oxabenzochrysenones (11, 12) were elucidated using MS and NMR spectroscopic techniques In addition, five new glucosides (14-18) were identified, among them four allophanyl glucosides (1518), representing a novel type of 6 substituted glucosidic natural product On the basis of the common occurrence of these 12 new and four known structures (2, 5, 9, 13), hypothetical biosynthetic relationships are discussed The natural product distribution of other genera of the Haemodoraceae is used as the basis to elaborate biogeographic characteristics of this plant family.
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