Rigidin, a novel alkaloid with calmodulin antagonistic activity from the okinawan marine tunicate Eudistoma cf. rigida

Rigidin, a novel alkaloid with calmodulin antagonistic activity from the okinawan marine tunicate Eudistoma cf. rigida Eudistomidin-A, a novel calmodulin antagonist from the okinawan tunicate Rigidins B−D, New Pyrrolopyrimidine Alkaloids from a Tunicate Cystodytes Species Rigidin E, a New Pyrrolopyrimidine Alkaloid from a Papua New Guinea Tunicate Eudistoma Species Eudistomidins B, C, and D: novel antileukemic alkaloids from the Okinawan marine tunicate Eudistoma glaucus Eudistomidins B, C, and D: novel antileukemic alkaloids from the Okinawan marine tunicate Eudistoma glaucus Pseudodistomins A and B, novel antineoplastic piperdine alkaloids with calmodulin antagonistic activity from the Okinawan tunicate Pseudodistoma kanoko Eudistomidins E and F, new β-carboline alkaloids from the okinawan marine tunicate Eudistoma glaucus Eudistomidins H–K, new β-carboline alkaloids from the Okinawan marine tunicate Eudistoma glaucus Eudistomidins H–K, new β-carboline alkaloids from the Okinawan marine tunicate Eudistoma glaucus