Title: Anthraquinones and naphthohydroquinones from Rubia cordifolia
Abstract: Four naphthohydroquinones and their glycosides, and 11 anthraquinones and their glycosides were isolated from the dried roots of Rubia cordifolia var. pratensis. Six of them, dihydromollugin, 2-carbomethoxy-3-(3′- hydroxy)isopentyl-1,4-naphthohydroquinone 4-O-β-glucoside, 2-methyl-1,3,6-trihydroxy-9,10-anthraquinone 3-O-β-glucoside, 2-methyl-1,3,6-trihydroxy-9,10-anthraquinone 3-O-(3′-O-acetyl)-α-rhamnosyl (1→2)-β-glucoside, 2-methyl- 1,3,6-trihydroxy-9,10-anthraquinone 3-O-(3′,6′-O-diacetyl)-α-rhamnosyl(1→2)-β-glucoside and 2-methyl-1,3,6-tri- hydroxy-9,10-anthraquinone 3-O-(4′,6′-O-diacetyl)-α-rhamnosyl(1→2)-β-glucoside, were isolated for the first time from a natural source. The structures were established by various chemical and spectroscopic methods. The chemotaxonomic significance of these findings is discussed briefly.
Publication Year: 1989
Publication Date: 1989-01-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 58
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