Crambain, a new alkaloid from plants of the genus Crambe

Crambain, a new alkaloid from plants of the genus Crambe Alkaloids from Crambe kotschyana endemic to Uzbekistan Crambines C1 and C2: Two Further Ichthyotoxic Guanidine Alkaloids from the Sponge Crambe crambe Crambines C1 and C2: Two Further Ichthyotoxic Guanidine Alkaloids from the Sponge Crambe crambe Two new guanidine alkaloids from the mediterranean sponge crambe crambe. Alkaloids from Crinum bulbispermum Polycyclic Guanidine Alkaloids from the Marine Sponge Crambe crambe and Ca⁺⁺ Channel Blocker Activity of Crambescidin 816 Additional bioactive guanidine alkaloids from the Mediterranean sponge Crambe crambe Polycyclic Guanidine Alkaloids from the Marine Sponge Crambe crambe and Ca⁺⁺ Channel Blocker Activity of Crambescidin 816 Alkaloids from Crinum firmifolium var. hygrophilum