Psammaplysin C: A New Cytotoxic Dibromotyrosine-Derived Metabolite from the Marine Sponge Druinella (=Psammaplysilla) purpurea

Psammaplysin C: A New Cytotoxic Dibromotyrosine-Derived Metabolite from the Marine Sponge Druinella (=Psammaplysilla) purpurea Purpuramines A-I, new bromotyrosine-derived metabolites from the marine sponge Psammaplysilla purpurea Novel marine sponge derived amino acids 13. Additional psammaplin derivatives from Psammaplysilla purpurea A New Dibromotyrosine-Derived Metabolite from the Sponge <i>Psammaplysilla</i> <i>purpurea</i> Two New Bromotyrosine-Derived Metabolites from the Sponge Psammaplysilla purpurea Cytotoxic Psammaplysin Analogues from a <i>Suberea</i> sp. Marine Sponge and the Role of the Spirooxepinisoxazoline in Their Activity Novel Bromine-Containing Constituents of the Sponge <i>Psammaplysilla </i><i>p</i><i>urpurea</i> Purealidin S and Purpuramine J, Bromotyrosine Alkaloids from the Fijian Marine Sponge <i>Druinella </i>sp. Purealidin S and Purpuramine J, Bromotyrosine Alkaloids from the Fijian Marine Sponge <i>Druinella </i>sp. Psammaplysin F, a New Bromotyrosine Derivative from a Sponge, <i>Aplysinella</i> sp.