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Representative structures of some small marine molecules endowed with antithrombotic action: (A) polyphenol (dieckol) isolated from Eisenia bicyclis, (B) sphingosines isolated from marine sponge Haliclona tubifera, (C) alkaloid (fascaplysin) isolated from marine sponge Fascaplysin opsis, (D) benzoic acid derivatives isolated from marine fungus Penicillium chrysogenum, and (E) Triterpenoid (Pachydichtyol A) isolated from marine brown alga Dictyota menstrualis.
