Marine Alkaloids. 18. Securamines and Securines, Halogenated Indole-Imidazole Alkaloids from the Marine BryozoanSecuriflustra securifrons¹

Lisa Rahbaek,Uffe Anthoni,Carsten Christophersen,Per Halfdan Nielsen,Bent O. Petersen

JOURNAL OF ORGANIC CHEMISTRY（1996）

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摘要

Four halogenated indole-imidazole alkaloids, securamine A-D, have been isolated from the marine bryozoan Securiflustra securifrons and their structures determined by NMR and mass spectrometry. Securamine A and B are in equilibrium with two macrocyclic alkaloids, securine A and B, respectively.

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Marine Alkaloids. 18. Securamines and Securines, Halogenated Indole-Imidazole Alkaloids from the Marine BryozoanSecuriflustra securifrons1

Marine Alkaloids. 18. Securamines and Securines, Halogenated Indole-Imidazole Alkaloids from the Marine BryozoanSecuriflustra securifrons¹