Stereochemical assignments of rubiaquinones A–C, naphthoquinone derivatives from Rubia yunnanensis
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DOI: 10.1016/j.tetlet.2017.10.051
Abstract: Three new naphthoquinone derivatives, rubiaquinones A-C (1-3), were isolated from the roots of Rubia yunnanensis. Rubiaquinone A (1) was a racemic naphthoquinone dimer consisting of a 1,4-dihydroxy-naphthalene and a 4-hydroxy-1,2-naphthoquinone moieties with a 2-oxo-propyl group.… read more here.
Keywords: stereochemical assignments; ecd spectra; naphthoquinone derivatives; rubiaquinones naphthoquinone ... See more keywords