Triterpene saponins from Thalictrum minus. VI. Structure of thalicoside C

From the epigeal part ofThalictrum minus L. (Ranuncluaceae) we have isolated a minor cycloartane trisdesmoside — thalicoside C — 3,16,22(S),29-tetrahydroxy-9,19-cyclo-20(S)-lanost-24-ene 3-O--galactopyranoside 22,29-di-O--D-glucopyranoside. Its structure was established from the results of chemical transformations and of FAB-mass and NMR spectroscopies (¹H₁,¹³C,¹H-¹H₁, and¹³C-¹H).Irkutsk Institute of Organic Chemistry, Siberian Branch, Russian Academy of Sciences. Translated from Khimiya Prirodnykh Soedeninii, No. 1, pp. 103–109, January–February, 1993.