Makaluvamines H-M and Damirone C from the Pohnpeian Sponge Zyzzya fuliginosa

Abstract
Seven new pyrroloiminoquinone alkaloids, makaluvamines H-M [19-24] and damirone C[25], together with the known compounds, makaluvamines C[13], D[14], and G[17], were isolated from the sponge Zyzzya fuliginosa collected at Nahpali Island, Pohnpei, Micronesia. The structures of the new compounds were elucidated by interpretation of spectral data. The chemotaxonomic relationships involving the makaluvamines and related pyrroloiminoquinone alkaloids are discussed.

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