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Published on: August 16, 2018
Two triterpenoid saponins from Neonauclea sessilifolia
Atsuko Itoh1, Takao Tanahashi, Naotaka Nagakura
1Kobe Pharmaceutical University, Higashinada-ku, Kobe, Japan.
Chemical & Pharmaceutical Bulletin
|November 6, 2003
Abstract:
From the dried roots of Neonauclea sessilifolia (Rubiaceae), two new triterpenoid saponins, 3-O-beta-D-glucopyranosyl-(1-->2)-beta-D-quinovopyranosyl quinovic acid (1) and 3-O-alpha-L-rhamnopyranosyl-(1-->4)-beta-D-quinovopyranosyl pyrocincholic acid 28-O-beta-D-glucopyranosyl-(1-->6)-beta-D-glucopyranosyl ester (2), were isolated, together with five known saponins. The structures of the new saponins were determined by spectroscopic and chemical means.