New Agelasine Compound from the Marine Sponge Agelas mauritiana as an Antifouling Substance against Macroalgae

New Agelasine Compound from the Marine Sponge Agelas mauritiana as an Antifouling Substance against Macroalgae New Agelasine Compound from the Marine Sponge <i>Agelas mauritiana </i>as an Antifouling Substance against Macroalgae Agelasines J, K, and L from the Solomon Islands Marine Sponge <i>Agelas</i> cf. <i>mauritiana</i> Agelasines J, K, and L from the Solomon Islands Marine Sponge <i>Agelas</i> cf. <i>mauritiana</i> New diterpene alkaloids from the marine sponge Agelas mauritiana Antimicrobial Metabolites from the Paracel Islands Sponge <i>Agelas mauritiana</i> Agelasine G, a New Antileukemic Alkaloid from the Okinawan Marine Sponge Agelas sp. Agelasines H and I, 9-Methyladenine-Containing Diterpenoids from an<i> Agelas</i> Sponge Agelasines H and I, 9-Methyladenine-Containing Diterpenoids from an<i> Agelas</i> Sponge Agelasines O–U, new diterpene alkaloids with a 9-N-methyladenine unit from a marine sponge Agelas sp.