title: Cyclic dipeptide of D-ornithine obtained from the dobsonfly, Protohermes grandis Thunberg.
abstract: A new compound was isolated from the water-soluble fraction of a methyl alcohol extract obtained from the larva of the dobsonfly (Protohermes grandis Thunberg). The novel compound had a 12-membered ring and was confirmed to be a cyclic dipeptide of D-ornithine by a chiral analysis, using high-performance liquid chromatography, 2D-nuclear magnetic resonance, and field desorption mass spectrometry.
authors: Faculty of Pharmaceutical Sciences, Setsunan University, Hirakata, Osaka, Japan. tanaka-r@pharm.setsunan.ac.jp
authors: Ryuichiro
authors: R
authors: Tanaka
authors: Masashi
authors: M
authors: Oda
mesh_terms: D000818:Animals; D002851:Chromatography, High Pressure Liquid; D004151:Dipeptides / Q000032:analysis* / Q000737:chemistry / Q000302:isolation & purification; D007313:Insecta / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D009952:Ornithine / Q000737:chemistry*; D010456:Peptides, Cyclic / Q000032:analysis* / Q000737:chemistry / Q000302:isolation & purification; D013237:Stereoisomerism
chemical_list: D004151:Dipeptides; D010456:Peptides, Cyclic; D009952:Ornithine