Five known compounds, kaji ichigoside F 1 (euscaphic O glucosyl ester, 1), ( ) epicatethin (2), daucosteryl 6′ palmitoleicate (β sitosteryl glucoside 6′ palmitoleoate, 3), daucosterol (β sitosteryl glucoside, 4) and β sitosterol (5) were isolated from Rubus setchuenensis for the first time. Their structures were identified on the basis of spectral data and compared with authentic samples. Fig 1, Tab 1, Ref
A new triterpenoid, methyl buergericate (12a), which was elucidated as 2 alpha, 3 alpha, 19 alpha, 24-tetrahydroxyl olean-12-en-28-oic acid methyl ester by spectroscopic methods, together with eleven known triterpenoids was isolated from Rubus buergeri Miq. The isolation of the above chemical constituents from this plant was reported for the first time.
Five compounds were isolated from Cyclocarya paliurus endemic to China. By spectral analysis, they were identified as (+)-catechin (1), choerospondin (2), pinocembrin-7-O-β-D-glucopyranoside (3), β-sitosterol (4) and daucosterol (5), respectively. Fig 1, Tab 1, Ref
