Anti-inflammatory norditerpenoids from the soft coral Sinularia maxima
- Bioorg Med Chem Lett. 2013 Jan 1;23(1):228-31. doi: 10.1016/j.bmcl.2012.10.129.
- 1. Institute of Marine Biochemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Nghiado, Caugiay, Hanoi, Viet Nam.
Chemical investigation of the soft coral Sinularia maxima resulted in the isolation of seven norditerpenoids, including two new compounds, 12-hydroxy-scabrolide A (2) and 13-epi-scabrolide C (6). The structures of the isolated compounds were elucidated based on extensive spectroscopic evidence including Fourier transform ion cyclotron resonance mass spectrometry (FTICR-MS) and both one- and two-dimensional nuclear magnetic resonance (1D and 2D NMR, respectively), in comparison with reported data. Compound 6 potently inhibited IL-12 and IL-6 production in LPS-stimulated bone marrow derived dendritic (BMDCs) with IC(50) values of 5.30 ± 0.21 and 13.12 ± 0.64 μM, respectively. Compound 1 exhibited moderate inhibitory activity against IL-12 and IL-6 production with IC(50) values of 23.52 ± 1.37 and 69.85 ± 4.11 μM, respectively.