JOURNAL 311


Records of Natural Products
VOLUME & ISSUE
Year: 2017 Issue: 6 November-December
PAGES
p.508 - 513
STATISTICS
Viewed 1979 times.
AUTHORS
    Shean-Yeaw Ng , Takashi Kamada and Charles S. Vairappan
PDF OF ARTICLE

GRAPHICAL ABSTRACT


ABSTRACT


Three populations of Mastigophora diclados were collected from Mount Kinabalu, Mount Alab, and Mount Trus Madi. Each population yielded a total of four, four, and five secondary metabolites, respectively. A new compound, dicladoic acid (1) and the enantiomer of the known chlorantene G (8), along with six known compounds (2-7) were isolated from the MeOH extract of Bornean liverwort Mastigophora diclados. The structures of the novel metabolites were established by analyses of the spectroscopic data, including 1D NMR, 2D NMR, HRESIMS and IR. Isolated compounds shed some light into the chemosystematics of secondary metabolites in M. diclados. Herbertane-type sesquiterpenes were identified as the major metabolites in all three populations in Sabah and could be regarded as a suitable chemotaxonomical marker.

KEYWORDS
  • Pimarane
  • diterpenoid
  • Mastigophora diclados
  • liverwort
  • Borneo island.

SUPPORTING INFORMATION


Supporting Information
Download File 65-RNP-1704-071-SI.pdf (476.41 KB)