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  • Title: Ptilomycalin D, a polycyclic guanidine alkaloid from the marine sponge Monanchora dianchora.
    Author: Bensemhoun J, Bombarda I, Aknin M, Vacelet J, Gaydou EM.
    Journal: J Nat Prod; 2007 Dec; 70(12):2033-5. PubMed ID: 18039012.
    Abstract:
    A new polycyclic guanidine alkaloid, ptilomycalin D, and the known crambescidic acid were isolated from the marine sponge Monanchora dianchora collected in Nosy-Be, northwest of Madagascar, in the Indian Ocean. The structures were elucidated using 1- and 2-D NMR and MS data, and their biogenetic implications are discussed.
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