期刊
TETRAHEDRON LETTERS
卷 47, 期 9, 页码 1385-1387出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2005.12.109
关键词
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It was found that 6-hydroxy- and 6-alkoxy-2,3-dichloronaphthazarins react smoothly with sodium azide in methanol to produce the corresponding 2-azido derivatives as single regioisomers. We have explored the utility of this reaction for the synthesis of echinamine A (3-amino-7-ethyl-2,5,6,8-tetrahydroxy-1,4-naphthoquinone)-the first marine aminated hydroxynaphthazarin, a metabolite of the sea urchin Scaphechinus mirabilis (Agassiz). (c) 2006 Elsevier Ltd. All rights reserved.
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