Nonsymmetrical β-Carboline Dimers from an Ascidian, Didemnum sp.

Nonsymmetrical β-Carboline Dimers from an Ascidian, <i>Didemnum</i> sp. Didemnolines A-D, new N9-substituted β-carbolines from the marine ascidian Didemnum sp. A Cyclized Didemnimide Alkaloid from the Caribbean Ascidian Didemnum conchyliatum Bengacarboline, a New β-Carboline from a Marine Ascidian <i>Didemnum</i> sp. Didemnimides A−D:  Novel, Predator-Deterrent Alkaloids from the Caribbean Mangrove Ascidian Didemnum conchyliatum Total synthesis of didemnimide A and B 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. Ascididemin, a novel pentacyclic aromatic alkaloid with potent antileukemic activity from the okinawan tunicate didemnum sp. Plakinidine D, a New Pyrroloacridine Alkaloid from Two Ascidians of the Genus <i>Didemnum</i>