title: Echinamines A and B, first aminated hydroxynaphthazarins from the sea urchin Scaphechinus mirabilis.
abstract: Two new spinochromes, echinamines A (1) and B (2), were isolated from the sea urchin Scaphechinus mirabilis. Compounds 1 and 2 represent the first examples of natural polyhydroxynaphthazarins with a primary amine group. The structures of 1 and 2 were established by analysis of spectroscopic data and synthesis of their dimethyl ethers.
authors.affiliation: Pacific Institute of Bioorganic Chemistry, Far East Branch of the Russian Academy of Sciences, 159, Prospect 100 let Vladivostoku, Vladivostok 690022, Russian Federation. misch@piboc.dvo.ru
authors.forename: Natalia P
authors.initials: NP
authors.lastname: Mischenko
authors.forename: Sergey A
authors.initials: SA
authors.lastname: Fedoreyev
authors.forename: Nataly D
authors.initials: ND
authors.lastname: Pokhilo
authors.forename: Victor Ph
authors.initials: VP
authors.lastname: Anufriev
authors.forename: Vladimir A
authors.initials: VA
authors.lastname: Denisenko
authors.forename: Valery P
authors.initials: VP
authors.lastname: Glazunov
mesh_terms: D000818:Animals; D001713:Biphenyl Compounds; D007564:Japan; D015394:Molecular Structure; D009285:Naphthoquinones / Q000737:chemistry / Q000302:isolation & purification*; D019906:Nuclear Magnetic Resonance, Biomolecular; D010851:Picrates / Q000494:pharmacology; D012617:Sea Urchins / Q000737:chemistry*
chemical_list: D001713:Biphenyl Compounds; D009285:Naphthoquinones; D010851:Picrates; C505310:echinamine A; C505311:echinamine B; C004931:1,1-diphenyl-2-picrylhydrazyl