Notes
Two Triterpenoid Saponins from Neonauclea sessilifolia
2003 年 51 巻 11 号 p. 1335-1337
詳細
2003 年 51 巻 11 号 p. 1335-1337
From the dried roots of Neonauclea sessilifolia (Rubiaceae), two new triterpenoid saponins, 3-O-β-D-glucopyranosyl-(1→2)-β-D-quinovopyranosyl quinovic acid (1) and 3-O-α-L-rhamnopyranosyl-(1→4)-β-D-quinovopyranosyl pyrocincholic acid 28-O-β-D-glucopyranosyl-(1→6)-β-D-glucopyranosyl ester (2), were isolated, together with five known saponins. The structures of the new saponins were determined by spectroscopic and chemical means.
