Iheyamines, new cytotoxic bisindole pigments from a colonial ascidian, Polycitorella sp.

Iheyamines, new cytotoxic bisindole pigments from a colonial ascidian, Polycitorella sp. Polycitone B and Prepolycitrin A:  Two Novel Alkaloids from the Marine Ascidian <i>Polycitor africanus</i> Polyandrocarpamides A-D, novel metabolites from the marine ascidian polyandrocarpa sp. Polycitorols A and B, New Tricyclic Alkaloids from an Ascidian Three new sulfur-containing alkaloids, polycarpaurines A, B, and C, from an Indonesian ascidian Polycarpa aurata Three new sulfur-containing alkaloids, polycarpaurines A, B, and C, from an Indonesian ascidian Polycarpa aurata New Cytotoxic 1,2,4-Thiadiazole Alkaloids from the Ascidian Polycarpa aurata Structures and Antimicrobial Activities of Pyridoacridine Alkaloids Isolated from Different Chromotypes of the Ascidian <i>Cystodytes dellechiajei</i> Structures and Antimicrobial Activities of Pyridoacridine Alkaloids Isolated from Different Chromotypes of the Ascidian <i>Cystodytes dellechiajei</i> Polycitone A and Polycitrins A and B: New Alkaloids from the Marine Ascidian Polycitor sp