Browsing by Author "Jensen, Dwayne J."

Now showing items 1-5 of 5

  • Convenient large-scale purification of yessotoxin from Protoceratium reticulatum culture and isolation of a novel furanoyessotoxin

    Loader, Jared I.; Hawkes, Allan D.; Beuzenberg, Veronica; Jensen, Dwayne J.; Cooney, Janine M.; Wilkins, Alistair L.; Fitzgerald, Joan M.; Briggs, Lyn R.; Miles, Christopher O. (American Chemical Society, 2007)
    Yessotoxins from a large-scale culture (226 L) of Protoceratium reticulatum strain CAWD129 were harvested by filtration followed by solid-phase extraction. The extract was purified by column chromatography over basic alumina ...
  • Isolation and identification of a cis-C₈-diol-ester of okadaic acid from Dinophysis acuta in New Zealand

    Miles, Christopher O.; Wilkins, Alistair L.; Hawkes, Allan D.; Jensen, Dwayne J.; Cooney, Janine M.; Larsen, Kristofer; Petersen, Dirk; Rise, Frode; Beuzenberg, Veronica; Lincoln MacKenzie, A. (Elsevier, 2006)
    A cis-isomer of a C8-diol ester of okadaic acid (1) was isolated during large-scale purification of pectenotoxins (PTXs) from extracts of Dinophysis acuta collected from the west coast of South Island, New Zealand. The ...
  • Isolation and identification of pectenotoxins-13 and -14 from Dinophysis acuta in New Zealand

    Miles, Christopher O.; Wilkins, Alistair L.; Hawkes, Allan D.; Jensen, Dwayne J.; Selwood, Andrew I.; Beuzenberg, Veronica; MacKenzie, A. Lincoln; Cooney, Janine M.; Holland, Patrick T. (Elsevier, 2006-08)
    Two novel pectenotoxins (PTXs), PTX-13 and -14, were isolated from extracts of Dinophysis acuta collected from the west coast of South Island, New Zealand. The compounds were identified as oxidized analogues of PTX-2 by ...
  • Preparative enzymatic synthesis of glucuronides of zearalenone and five of its metabolites

    Stevenson, David E.; Hansen, Richard P.; Loader, Jared I.; Jensen, Dwayne J.; Cooney, Janine M.; Wilkins, Alistair L.; Miles, Christopher O. (American Chemical Society, 2008)
    The resorcylic acid lactones zearalenone (1), α-zearalenol (2), β-zearalenol (3), α-zearalanol (zeranol) (4), β-zearalanol (taleranol) (5), and zearalanone (6) were converted to their glucuronides on a preparative scale ...
  • Semisynthesis of S-Desoxybrevetoxin-B2 and Brevetoxin-B2, and Assessment of Their Acute Toxicities

    Selwood, Andrew I.; van Ginkel, Roel; Wilkins, Alistair L.; Munday, Rex; Ramsdell, John S.; Jensen, Dwayne J.; Cooney, Janine M.; Miles, Christopher O. (American Chemical Society, 2008)
    animals and people consuming seafood. Brevetoxin-B2 (5) is a toxic metabolite produced in shellfish exposed to algae that contain brevetoxin-B (1). S-Desoxybrevetoxin-B2 (4) has been proposed as a cometabolite produced ...