In 2012, two halogenated natural products breitfussin A (132) and breitfussin B (133) (Figure 13) were isolated from the Arctic hydrozoan Thuiria breitfussi collected at Bjørnøya (Bear Island) [77]. Mar. Drugs 2017, 15, 28 14 of 30 RecenMtalry. ,DHrugesd 2b01e7r, g15...