Two bisdesmosidic saponins from the roots of Crossopteryx febrifuga were isolated by means of reversed phase HPLC. They were characterized on the basis of chemical and spectral data as 3-O-β-d-glucopyranosyl-2β,3β,6β,16α,23-pentahy droxyolean-12-en-28-oic acid 28-O-[α-l-rhamnopyranosyl(1→3)] [β-d-xylopyranosyl-(1→4)] [α-l-rhamnopyranosyl(1→2)]α-l-arabinopyranoside and 3-O-[β-d-apiofuranosyl(1→3)]β-d-glucopyrano-syl-2β,3 β,6β,16α,23-pentahydroxyolean-12-en-28-oic acid 28-O-[α-l-rhamnopyranosyl(1→3)] [β-d-xylopyranosyl-(1→4] [α-l-rhamnopyranosyl(1→2)]α-l-arabinopyranoside. 2D NMR experiments were useful in providing complete information on the structure and geometry of the new sapogenin present.
SAPONINS FROM CROSSOPTERYX-FEBRIFUGA / P. GARIBOLDI, L. VEROTTA, B. GABETTA. - In: PHYTOCHEMISTRY. - ISSN 0031-9422. - 29:8(1990), pp. 2629-2635.
SAPONINS FROM CROSSOPTERYX-FEBRIFUGA
L. VEROTTASecondo
;
1990
Abstract
Two bisdesmosidic saponins from the roots of Crossopteryx febrifuga were isolated by means of reversed phase HPLC. They were characterized on the basis of chemical and spectral data as 3-O-β-d-glucopyranosyl-2β,3β,6β,16α,23-pentahy droxyolean-12-en-28-oic acid 28-O-[α-l-rhamnopyranosyl(1→3)] [β-d-xylopyranosyl-(1→4)] [α-l-rhamnopyranosyl(1→2)]α-l-arabinopyranoside and 3-O-[β-d-apiofuranosyl(1→3)]β-d-glucopyrano-syl-2β,3 β,6β,16α,23-pentahydroxyolean-12-en-28-oic acid 28-O-[α-l-rhamnopyranosyl(1→3)] [β-d-xylopyranosyl-(1→4] [α-l-rhamnopyranosyl(1→2)]α-l-arabinopyranoside. 2D NMR experiments were useful in providing complete information on the structure and geometry of the new sapogenin present.
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