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A new bromoindole alkaloid, named dragmacidin F (1) and structurally related to other dragmacidins previously described, was isolated from a marine sponge of the genus Halicortex collected off the southern coast of Ustica Island (Italy). Structural elucidation of 1 was achieved by an extensive spectroscopic study (mainly by 1D/2D-NMR and MS techniques). Compound 1, containing an unprecedented carbon...
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