ent-Kaurenoids from the roots of Cacalia pilgeriana |
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| Authors: | E-W Li |
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| Institution: |
a State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, China |
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| Abstract: | Two new ent-kaurenoids,19-acetoxyl-ent-3β,17-dihydroxykaur-15-ene (1), 19-acetoxyl-ent-3β-hydroxykaur-15-en-17-al (2), together with seven known ent-kaurenoids: ent-kaur-16-en-19-al (3), ent-kaur-16-en-19-oic acid (4), ent-kauran-16β,17-diol (5), ent-15β, 16β-epoxy-17-hydroxykauran-19-oic acid (6),19-acetyl-ent-3β-hydroxyl-kaur-16-ene (7), ent-3β,19-dihydroxykaur-16-ene (8), ent-17-hydroxykaur-15-ene (9), were isolated from Cacalia pilgeriana. Their structures were elucidated by spectroscopic methods including 2D NMR spectral analysis. |
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| Keywords: | Cacalia pilgeriana Compositae ent-Kaurenoid 19-acetoxyl-ent-3β 17-dihydroxykaur-15-ene 19-acetoxyl-ent-3β-hydroxykaur-15-en-17-al |
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