As. Stolyarenko et al., Triterpene glycosides of Scheffleropsis angkae. II. Structure of glycosides L-E-1, L-E-2, L-K-1, and L-K-2, CHEM NAT CO, 36(3), 2000, pp. 295-298
The structures of four triterpene glycosides from leaves of Scheffleropsis
angkae (Araliaceae) are established using chemical and NMR methods. The str
uctures 3-O-beta -D-glucopyranosyl-(1-->3)-O-alpha -L-arabinopyranosides of
oleanic and ursolic acids and their 28-O-alpha -rhamnopyranosyl-(1-->4)-O-
beta -gentiobiosyl ethers are proposed for L-E-1, L-E-2, L-K-1, and L-K-2,
respectively. L-K-1 and L-K-2 are new triterpene glycosides.