Structure Identification: |
Helvetica Chimica Acta, 2010, 91(5):856-861. | Terpenoids from Two Dicranopteris Species.[Reference: WebLink] | METHODS AND RESULTS: Two new compounds, (6S,13S)-6-{[β-D-glucopyranosyl-(1→4)-α-L-rhamnopyranosyl]oxy}cleroda-3,14-dien-13-ol (1) and kadsuric acid 3-methyl ester (2), together with nine known compounds, (6S,13E)-6-{[β-D-glucopyranosyl-(1→4)-α-L-rhamnopyranosyl]oxy}cleroda-3,13-dien-15-ol (3), (6S,13S)-6-[6-O-acetyl-β-D-glucopyranosyl-(1→4)-α-L-rhamnopyranosyl]oxy}-13-{[α-L-rhamnopyranosyl-(1→4)-β-D-fucopyranosyl]oxy}cleroda-3,14-diene (4), (6S,13S)-6-{[6-O-β-D-glucopyranosyl-(1→4)-α-L-rhamnopyranosyl]oxy}-13-{[α-L-rhamnopyranosyl-(1→4)-β-D-fucopyranosyl]oxy}cleroda-3,14-diene (5), 15-hydroxydehydroabietic acid (6), 15-hydroxylabd-8(17)-en-19-oic acid (7), Junicedric acid (8), (4β)-kaur-16-en-18-oic acid (9), (4β)-16-hydroxykauran-18-oic acid (10), and (4β,16β)-16-hydroxykauran-18-oic acid (11) were isolated from the fronds of Dicranopteris linearis or D. ampla.
CONCLUSIONS:
Their structures were established by extensive 1D- and 2D-NMR spectroscopy. Compounds 1 and 3–8 showed no anti-HIV activities. |
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