Shishijimicins A−C, Novel Enediyne Antitumor Antibiotics from the Ascidian Didemnum proliferum

Shishijimicins A−C, Novel Enediyne Antitumor Antibiotics from the Ascidian <i>Didemnum proliferum</i> Ascididemin, a novel pentacyclic aromatic alkaloid with potent antileukemic activity from the okinawan tunicate didemnum sp. Namenamicin, a New Enediyne Antitumor Antibiotic from the Marine Ascidian <i>Polysyncraton lithostrotum</i> Bengacarboline, a New β-Carboline from a Marine Ascidian <i>Didemnum</i> sp. Didemnidines A and B, Indole Spermidine Alkaloids from the New Zealand Ascidian<i>Didemnum</i>sp. Didemnidines A and B, Indole Spermidine Alkaloids from the New Zealand Ascidian<i>Didemnum</i>sp. A Cyclized Didemnimide Alkaloid from the Caribbean Ascidian Didemnum conchyliatum New potent cytotoxic lamellarin alkaloids from Indian ascidian Didemnum obscurum New potent cytotoxic lamellarin alkaloids from Indian ascidian Didemnum obscurum Didemnimides A−D:  Novel, Predator-Deterrent Alkaloids from the Caribbean Mangrove Ascidian Didemnum conchyliatum