title: Isolation, structure determination, and biological activity of a novel alkaloid, perophoramidine, from the Philippine ascidian Perophora namei.
abstract: Chemical investigation of the Philippine ascidian Perophora namei has resulted in the isolation of a novel polycyclic alkaloid, perophoramidine (1). The structure of 1 was determined by the interpretation of 1D/2D NMR and MS data. Dehalogenation of perophoramidine (1) by ammonium formate catalyzed transfer hydrogenation confirmed the type and number of halogen atoms present in 1.
mesh_terms: D000470:Alkaloids / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D000818:Animals; D002384:Catalysis; D003110:Colonic Neoplasms; D004354:Drug Screening Assays, Antitumor; D006576:Heterocyclic Compounds, 4 or More Rings / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D006801:Humans; D006846:Hydrocarbons, Halogenated / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D020128:Inhibitory Concentration 50; D013058:Mass Spectrometry; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D010679:Philippines; D013237:Stereoisomerism; D014407:Tumor Cells, Cultured / Q000187:drug effects; D014561:Urochordata / Q000737:chemistry*
chemical_list: D000470:Alkaloids; D006576:Heterocyclic Compounds, 4 or More Rings; D006846:Hydrocarbons, Halogenated; C472225:perophoramidine