| In vitro: |
| Bioorganic & medicinal chemistry, 2010, 18(2):744-754. | | Isolation, structure, and bioactivities of abiesadines A–Y, 25 new diterpenes from Abies georgei Orr[Reference: WebLink] |
METHODS AND RESULTS:
Twenty-five new (abiesadines A–Y, Abiesadine I, 1–25, ) and 29 known (26–54) diterpenes were isolated from the aerial parts of Abies georgei. Abiesadine A (1) is a novel 8,14-seco-abietane, while abiesadine B (2) is a novel 9,10-seco-abietane. The structures of the new compounds were established on the basis of spectroscopic data analysis. Manool (52) showed the strongest effect against LPS-induced NO production in RAW264.7 macrophages with the IC50 value of 11.0 μg/mL. In another anti-inflammatory assay against TNFα-triggered NF-κB activity, (12R,13R)-8,12-epoxy-14-labden-13-ol (54) exhibited the strongest effect (IC50 = 8.7 μg/mL).
CONCLUSIONS:
For antitumor assays, pomiferin A (26) and 8,11,13-abietatriene-7α,18-diol (29) both showed the most significant activity against LOVO cells (IC50 = 9.2 μg/mL). While 7-oxocallitrisic acid (46) exhibited significant cytotoxicity against QGY-7703 tumor cells (IC50 = 10.2 μg/mL). |
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