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KMID : 0043320010240060522
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Archives of Pharmacal Research
2001 Volume.24 No. 6 p.522 ~ p.523
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A New Naphthoquinone from Prola japonica
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Lee SM
An RB/Min BS/Na MK/Lee CH/Kang SJ/Maeng HY/Bae KH
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Abstract
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A new naphthoquinone, 5,8-dihydro-2,7-dimethyl-[1,4] naphthoquinone (1), which was named 5,8-dihydrochimaphilin, isolated from an ethyl acetate soluble fraction from the root of Pyroja japonica, together with chimaphilin (2). Compound 1 was transformed rapidly to 2 upon exposure to air by HPLC analysis. This fact supported that chimaphilin (2) may be an artifact from 1.
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