Bioactive marine metabolites. 24. Isolation and structure elucidation of calyculins B, C, and D, novel antitumor metabolites, from the marine sponge Discodermia calyx

Bioactive marine metabolites. 24. Isolation and structure elucidation of calyculins B, C, and D, novel antitumor metabolites, from the marine sponge Discodermia calyx Isolation of Four New Calyculins from the Marine Sponge <i>Discodermia calyx</i>¹ Bioactive marine metabolites. Part 16. Calyculin A. A novel antitumor metabolite from the marine sponge Discodermia calyx Calyculins E, F, G, and H, additional inhibitors of protein phosphatases 1 and 2a, from the marine sponge discodermia calyx Phosphocalyculin C as a pyrophosphate protoxin of calyculin C in the marine sponge Discodermia calyx Isolation of dephosphonocalyculin a from the marine sponge, Discodermia calyx Calyxamides A and B, Cytotoxic Cyclic Peptides from the Marine Sponge <i>Discodermia calyx</i> Calyxamides A and B, Cytotoxic Cyclic Peptides from the Marine Sponge <i>Discodermia calyx</i> The Calyxolanes:  New 1,3-Diphenylbutanoid Metabolites Isolated from the Caribbean Marine Sponge <i>Calyx podatypa</i> Calyceramides A–C: neuraminidase inhibitory sulfated ceramides from the marine sponge Discodermia calyx