Benzopyran, biphenyl, and tetraoxygenated xanthone derivatives from the twigs of Garcinia nigrolineata.

نویسندگان

  • Vatcharin Rukachaisirikul
  • Kwanruthai Tadpetch
  • Anyarat Watthanaphanit
  • Neangnoi Saengsanae
  • Souwalak Phongpaichit
چکیده

One new benzopyran, nigrolineabenzopyran A (1), two new biphenyls, nigrolineabiphenyls A and B (2, 3), and four new tetraoxygenated xanthones, nigrolineaxanthones T-W (4-7), were isolated from the crude methanol extract of the twigs of Garcinia nigrolineata along with 11 known xanthones. The xanthones isolated from the twigs as well as those from the stem bark were evaluated for antibacterial activity against methicillin-resistant Staphylococcus aureus. Nigrolineaxanthone F, latisxanthone D, and brasilixanthone showed significant activity, with an equal MIC value of 2 microg/mL.

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عنوان ژورنال:
  • Journal of natural products

دوره 68 8  شماره 

صفحات  -

تاریخ انتشار 2005