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  • Columbamides D and E: Chlor...
    Lopez, Julius Adam V; Petitbois, Julie G; Vairappan, Charles S; Umezawa, Taiki; Matsuda, Fuyuhiko; Okino, Tatsufumi

    Organic letters, 08/2017, Volume: 19, Issue: 16
    Journal Article

    Two new chlorinated fatty acid amides, columbamides D (1) and E (2), along with apratoxins A and C and wewakazole, were isolated from the organic extract of a Moorea bouillonii sample from Sabah, Malaysia. Structure elucidation was accomplished by a combination of MS and NMR analyses. The total synthesis of all four stereoisomers of 1 was completed, and the absolute configuration was determined by chiral-phase HPLC and Marfey’s analysis.