Lupane, friedelane, oleanane, and ursane triterpenes from the stem of Siphonodon celastrineus Griff

Employing Two‐stage Derivatisation and GC–MS to Assay for Cathine and Related Stimulant Alkaloids across the Celastraceae

“…Sterols are routinely discovered in phytochemical assays (e.g. Kaweetripob et al ., ) of Celastraceae. However, because Pseudocatha mandenensis , Maurocenia frangula and Cassine parviflora , have not previously been assayed for sterols the compounds annotated here maybe undescribed molecules.…”

Stewartiacids A–N, C-23 carboxylated triterpenoids from Chinese Stewartia and their inhibitory effects against ATP-citrate lyase and NF-κB

“…Stewartiacids K (11) and L (12) are uncommon ursane-type triterpene and phenylpropanol hybrids by forming a unique 1,4-dioxane bridge. 26,32 The absolute congurations of compounds 1-9 and 12 were well established either by single crystal X-ray diffraction or by ECD analyses. The absolute congurations of the rest new stewartiacids (i.e., 10, 11, 13, and 14) are still open; however, they could be assigned as shown in both Fig.…”

“…Interestingly, the formation of the 1,4-dioxane rings in compounds 11 and 12 has been considered to be resulted via a free radical coupling reaction. 26 Stewartiacid M (13) has the same molecular formula (C 30 H 44 O 6 ) as compound 9 based on the HRESIMS and 13 C NMR Table 1). The NMR spectroscopic data of 14 showed a high similarity to camellisin C, which has been previously reported from the roots of Camellia sinensis.…”

Antioxidant, Antibacterial and Antiplasmodial Activities of Galactogogue Plant Extracts

“…Sesquiterpenes, sesquiterpene alkaloids, triterpenes and sterols have been isolated from the fruit, root bark and stem of SCe. [36][37][38][39] Coumarins and triterpenes have been reported in the extracts of the leaf and bark of MM. 40,41 Since the antiplasmodial property and active compounds of SCe and MM plants have not previously been investigated and extensive study is required for the separation, purification and characterization of its active compounds, so that in-deep studies for the promising antiplasmodiall molecules from the stem bark of MM and SCe could be conducted.…”