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.
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Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 4, pp. 788–791, April, 2007.
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Yakubovskaya, A.Y., Pokhilo, N.D., Mishchenko, N.P. et al. Spinazarin and ethylspinazarin, pigments of the sea urchin Scaphechinus mirabilis . Russ Chem Bull 56, 819–822 (2007). https://doi.org/10.1007/s11172-007-0122-0
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DOI: https://doi.org/10.1007/s11172-007-0122-0