Article

Russian Chemical Bulletin

, Volume 56, Issue 4, pp 819-822

Spinazarin and ethylspinazarin, pigments of the sea urchin Scaphechinus mirabilis

  • A. Ya. YakubovskayaAffiliated withPacific Institute of Bioorganic Chemistry of the Far-Eastern Branch of the Russian Academy of Sciences
  • , N. D. PokhiloAffiliated withPacific Institute of Bioorganic Chemistry of the Far-Eastern Branch of the Russian Academy of Sciences
  • , N. P. MishchenkoAffiliated withPacific Institute of Bioorganic Chemistry of the Far-Eastern Branch of the Russian Academy of Sciences
  • , V. F. AnufrievAffiliated withPacific Institute of Bioorganic Chemistry of the Far-Eastern Branch of the Russian Academy of Sciences Email author 

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Abstract

2,3,5,8-Tetrahydroxy-1,4-naphthoquinone (spinazarin) and 6-ethyl-2,3,5,8-tetrahydroxy-1,4-naphthoquinone (ethylspinazarin) were first isolated from the sea urchin Scaphechinus mirabilis. The structures of spinazarins were established based on analysis of spectroscopic data. A preparative synthetic route to ethylspinazarin was proposed.

Key words

5,8-dihydroxy-1,4-naphthoquinone, naphthazarin 2,3,5,8-tetrahydroxy-1,4-naphthoquinone, spinazarin 6-ethyl-2,3,5,8-tetrahydroxy-1,4-naphthoquinone, ethyl-spinazarin sea urchin, Scaphechinus mirabilis