Pregnane glycosides from Baseonema acuminatum.
Two new pregnane glycosides, baseonemoside A and B, were isolated from the aerial parts of Baseonema acuminatum. Their structures were established as pregn-5-ene-3beta,16alpha,20(S)-triol 3-O-beta-D-cymaropyranosyl-(1-->4)-beta-D-digitoxopyranoside 20-O-beta-D-glucopyranosyl-(1-->2)-beta-D-digitalopyranoside 1 and pregn-5-ene-3beta,16alpha,20(S)-triol 3-O-beta-D-cymaropyranosyl-(1-->4)-beta-D-cymaropyranosyl-(1-->4)-beta-D-digitoxopyranoside 20-O-beta-D-glucopyranosyl-(1-->2)-beta-D-digitalopyranoside 2, respectively, on the basis of spectral evidence and chemical transformation.
Rasamison
V E
VE
Centre National d'Application des Recherches Pharmaceutiques, B.P. 702, 101 Antananarivo, Madagascar.
Okunade
A L
AL
Ratsimbason
A M
AM
Rafidinarivo
E
E
D006027:Glycosides / Q000737:chemistry*; D006801:Humans; D010936:Plant Extracts / Q000737:chemistry*; D010946:Plants, Medicinal / Q000737:chemistry*; D011278:Pregnanes / Q000737:chemistry*; D012503:Saponins / Q000737:chemistry
D006027:Glycosides; D010936:Plant Extracts; D011278:Pregnanes; D012503:Saponins; C426014:baseonemoside A; C426013:baseonemoside B