Two New Cytotoxic Peroxide-Containing Acids from a New Guinea Sponge, Callyspongia sp.

Two New Cytotoxic Peroxide-Containing Acids from a New Guinea Sponge, Callyspongia sp. Three New Cytotoxic Metabolites from the Marine Sponge Plakortis halichondrioides Callyspongenols A−C, New Cytotoxic C₂₂-Polyacetylenic Alcohols from a Red Sea Sponge, <i>Callyspongia</i> Species Cytotoxic C₄₇-Polyacetylene Carboxylic Acids from a Marine Sponge <i>Pertrosia</i> sp. Callyspongidic Acids: Amphiphilic Diacids from the Tropical Eastern Pacific Sponge <i>Callyspongia</i> cf. <i>californica</i> New Acetylenic Acids from a Sponge of the Genus <i>Stelletta</i> Callyspongynic Acid, a Polyacetylenic Acid Which Inhibits α-Glucosidase, from the Marine Sponge <i>Callyspongia </i><i>t</i><i>runcata</i> Callyspongamide A, a New Cytotoxic Polyacetylenic Amide from the Red Sea Sponge <i>Callyspongia </i><i>f</i><i>istularis</i> New Cyclic Peroxides from the Philippine Sponge <i>Plakinastrella</i> sp. Two new alkaloids from marine spongeCallyspongiasp.