3-Alkylpyridinium Alkaloids from the Pacific Sponge Haliclona sp.

3-Alkylpyridinium Alkaloids from the Pacific Sponge <i>Haliclona</i> sp. 3-Alkylpyridinium Alkaloids from the Pacific Sponge <i>Haliclona</i> sp. Cyclohaliclonamines A−E:  Dimeric, Trimeric, Tetrameric, Pentameric, and Hexameric 3-Alkyl Pyridinium Alkaloids from a Marine Sponge Haliclona sp. Haliclocyclin C, a New Monomeric 3-Alkyl Pyridinium Alkaloid from the Arctic Marine Sponge Haliclona viscosa Cyclic 3-Alkyl Pyridinium Alkaloid Monomers from a New Zealand <i>Haliclona</i> sp. Marine Sponge Cyclic 3-Alkyl Pyridinium Alkaloid Monomers from a New Zealand <i>Haliclona</i> sp. Marine Sponge New haliclamines E and F from the Arctic sponge Haliclona viscosa Haliclocyclin C, a New Monomeric 3-Alkyl Pyridinium Alkaloid from the Arctic Marine Sponge Haliclona viscosa New haliclamines E and F from the Arctic sponge Haliclona viscosa A new 3-alkylpyridine alkaloid from the marine sponge Haliclona sp. and its cytotoxic activity