Journal
JOURNAL OF THE BRAZILIAN CHEMICAL SOCIETY
Volume 19, Issue 6, Pages 1098-1104Publisher
SOC BRASILEIRA QUIMICA
DOI: 10.1590/S0103-50532008000600007
Keywords
orchid; loroglossin; militarin; habenarioside; flavonoids
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Funding
- CAPES
- FIOCRUZ
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Habenarioside, a new natural product identified as [(2R)-2-[(2,3,4,6-tetra-O-acetyl-beta-D-glucopyranosyl)oxy]-2-(2-methylpropyl)-1,4-dioxo-1,4-butanediyl]bis(oxymethylene-4,1-phenylene) bis-beta-D-glucopyranoside, along with two known related metabolites, loroglossin and militarin, were isolated from the ethanol extract of the whole plant Habenaria petalodes Lindl. (Orchidaccae). The flavonoids isoquercitrin, isorhamnetin 3-O-beta-D-glucopyranoside, and isorhamnetin 3,7-di-O-beta-D-glucopyranoside were also isolated. The structures of all compounds were established by analysis of their MS, IR, UV, 1D and 2D NMR spectra, and comparison with published data.
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