Nagilactone C and phyllanthoside are novel protein synthesis inhibitors, they are specific for the eukaryotic translation apparatus, function in vivo and in vitro, and interfere with translation elongation. Nagilactone C shows high insecticidal activity against second-instar nymphs of Eocanthecona furcellata. Nagilactone C possesses potent antiproliferative activity against human fibrosarcoma and murine colon carcinoma tumor cell lines exhibiting ED50 values of 2.3 and 1.2 microg/ml, respectively.
4 beta-Carboxy-19-nortotarol can inhibit microsomal lipid peroxidation induced by Fe(III)-ADP/NADPH and mitochondrial lipid peroxidation induced by Fe(III)-ADP/ NADH, it inhibits linoleic acid autoxidation but not generation of superoxide anion.
2,3-dihydrosciadopitysin is a natural product of Podocarpus, Podocarpaceae. The catalog number is TN2700 and the CAS number is 34421-19-7. 2,3-dihydrosciadopitysin can be used as a reference standard.
9,13β-Epidioxy-8(14)-abieten-18-oic acid has anti-inflammatory activities, it exhibits moderate activities on NO levels in LPS-stimulated murine microglia BV2 cells, with IC50 values of 57.3 ± 0.2 uM. It is also a potential antitumor-promoting diterpenoid, it shows potent inhibitory effects on Epstein-Barr virus early antigen (EBV-EA) activation induced by the tumor promoter 12-O-tetradecanoylphorbol 13-acetate. 9 α ,13 β -Epidioxyabeit-8(14)en-18-oic acid may contribute to the growth inhibitory effect of the pine needles and may play an important role in the allelopathy of red pine.