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  • Title: Psammaplysenes C and D, cytotoxic alkaloids from Psammoclemma sp.
    Author: Buchanan MS, Carroll AR, Addepalli R, Avery VM, Hooper JN, Quinn RJ.
    Journal: J Nat Prod; 2007 Nov; 70(11):1827-9. PubMed ID: 17988096.
    Abstract:
    The sponge Psammoclemma sp. was investigated as part of our studies to discover P2X 7 receptor antagonists for the treatment of inflammatory disease. The biological activity of this extract was found to be due to the cytotoxicity of two new bromotyrosine alkaloids, psammaplysenes C (1) and D (2), and not P2X 7-specific activity. Their structures were determined by 1D and 2D NMR spectroscopy.
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