Kinjo J, Uemura H, Nakamura M, Nohara T
Faculty of Pharmaceutical Sciences, Kumamoto University, Japan.
Chem Pharm Bull (Tokyo). 1994 Jun;42(6):1339-41. doi: 10.1248/cpb.42.1339.
Two new triterpenoid glycosides called medicago-saponins P1 (1) and P2 (2) were isolated together with five known glycosides from the aerial parts of Medicago polymorpha L. (Leguminosae). The structures of 1 and 2 were determined to be 3-O-alpha-L-rhamnopyranosyl-(1-->2)-alpha-L-arabinopyranosyl caulophyllogenin 28-O-beta-D-glucopyranosyl-(1-->6)-beta-D-glucopyranoside and the desglucoside of 1.