Novel ceramide 1-sulfates, potent DNA topoisomerase I inhibitors isolated from the Bryozoa Watersipora cucullata

Novel ceramide 1-sulfates, potent DNA topoisomerase I inhibitors isolated from the Bryozoa Watersipora cucullata Calyceramides A–C: neuraminidase inhibitory sulfated ceramides from the marine sponge Discodermia calyx Isoaurostatin, a Novel Topoisomerase Inhibitor Produced by <i>Thermomonospora </i><i>a</i><i>lba</i> DNA topoisomerase I inhibitors from Rinorea anguifera Topsentinols, 24-Isopropyl Steroids from the Marine Sponge <i>Topsentia</i> sp. Two New Ceramides from the Marine Sponge <i>Ircinia fasciculata</i> DNA Topoisomerase I Inhibitory Alkaloids from <i>Corydalis saxicola</i> Isolation and Structural Determination of Four New Ceramide Lactosides from the Starfish <i>Luidia maculata</i> New Ceramide from Marine Sponge <i>Haliclona koremella</i> and Related Compounds as Antifouling Substances against Macroalgae Isolation and structure elucidation of two phosphorylated sterol sulfates, MT1-MMP inhibitors from a marine sponge Cribrochalina sp.: revision of the structures of haplosamates A and B