Monoindole alkaloids from a marine sponge Mycale fibrexilis

Monoindole alkaloids from a marine sponge Mycale fibrexilis Ptilomycalin D, a Polycyclic Guanidine Alkaloid from the Marine Sponge <i>Monanchora dianchora</i> Ptilomycalin D, a Polycyclic Guanidine Alkaloid from the Marine Sponge Monanchora dianchora New 5-Alkylpyrrole-2-carboxaldehyde Derivatives from the Sponge <i>Mycale tenuispiculata</i> Monanchomycalin C, a New Pentacyclic Guanidine Alkaloid from the Far-Eastern Marine Sponge Monanchora Pulchra New Mycalolides from the Marine Sponge <i>Mycale magellanica </i>and Their Interconversion New Mycalolides from the Marine Sponge <i>Mycale magellanica </i>and Their Interconversion Albanitriles A–G: Antiprotozoal Polyacetylene Nitriles from a <i>Mycale</i> Marine Sponge Isolation of a New Mycalolide from the Marine Sponge <i>Mycale izuensis</i> Coscinamides A, B and C, three new bis indole alkaloids from the marine sponge Coscinoderma sp.