Bioactive triterpenoid glycosides from the twigs and leaves of Camellia reticulata

Four previously undescribed oleanane-type triterpenoid glycosides (dianshanchaosides A–D) were isolated from the twigs and leaves of Camellia reticulata, together with seven known analogues. Their structures were established by comprehensive spectroscopic data and chemical methods The triterpenoid glycosides were evaluated their inhibitory effects on the LPS-induced NO production in RAW264.7 macrophages and cytotoxicities against five human...