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Anti-inflammatory labdane-type diterpenoids from Physalis angulata
- Sun, Cheng-Peng, Yuan, Ting, Wang, Lei, Kang, Ning, Zhao, Feng, Chen, Li-Xia, Qiu, Feng
- RSC advances 2016 v.6 no.80 pp. 76838-76847
- Physalis angulata, biochemical pathways, diterpenoids, glycosides, inhibitory concentration 50, leaves, macrophages, nitric oxide, nuclear magnetic resonance spectroscopy, stems
- The investigation for stems and leaves of Physalis angulata led to the isolation of twelve new labdane-type diterpenoid glycosides, physangulatosides A–L (1–12). Their structures were established on the basis of NMR, IR, UV, and HRESIMS spectra. All isolated compounds were assayed for inhibitory activities against LPS-induced NO production in RAW 264.7 macrophages. Compounds 6–10 displayed inhibitory effects against NO production with IC₅₀ values of 15.9 ± 1.0–60.7 ± 3.8 μM. Herein, a plausible biosynthetic pathway for compounds 1–12 was also discussed.