Abstract
Three new anthraquinones, 1-hydroxy-2,3-dimethoxy-7-methyl-9,10-anthraquinone, 1,3-dihydroxy-5,6-dimethoxy-2-methyl-9,10-anthraquinone, and 3-hydroxy-1,5,6-trimethoxy-2-methyl-9,10-anthraquinone, along with five known anthraquinones were isolated from the roots of Prismatomeris tetrandra. Their structures were determined on the basis of spectroscopic data.
MeSH terms
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Anthraquinones / chemistry*
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Anthraquinones / isolation & purification
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Carbon Isotopes
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Drug Evaluation, Preclinical
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Magnetic Resonance Spectroscopy / methods
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Magnetic Resonance Spectroscopy / standards
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Molecular Structure
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Plant Roots / chemistry
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Plants, Medicinal / chemistry*
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Protons
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Reference Standards
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Rubiaceae / chemistry*
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Rubiaceae / classification
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Stereoisomerism
Substances
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1-hydroxy-2,3-dimethoxy-7-methyl-9,10-anthraquinone
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3-dihydroxy-5,6-dimethoxy-2-methyl-9,10-anthraquinone
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3-hydroxy-1,5,6-trimethoxy-2-methyl-9,10-anthraquinone
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Anthraquinones
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Carbon Isotopes
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Protons