Abstract
Four novel triterpenoid saponins have been isolated from Gypsophila capillaris. Three were monodesmosidic: 3β-hydroxyolean-12-en-23,28-dioic acid 28-O-[β- d-glucopyranosyl -(1 → 3)-β- d-glucopyranosyl -(1 → 2)][β- d-galactopyranosyl (1 → 6)]β- d-glucopyranoside 3β-hydroxyolean-12-en-23-oxo-28-oic acid 28-O-[β- d-glucopyranosyl -(1 → 2)-β- d-galactopyranosyl -(1 → 3)][β- d-glucopyranosyl (1 → 6)] β- d-galactopyranoside, 3β-hydroxyolean-12-en-23,28-dioic acid 28-O-[β- d-glucopyranosyl -(1 → 2)-β- d-galactopyranosyl -(1 → 3)][β- d-glucopyranosyl (1 → 6)]β- d-galactopyranoside . The fourth was bisdesmosidic: 3β-hydroxyolean-12-en-23,28-dioic acid 23-O-β- d-glucopyranosyl -28-O-[β- d-glucopyranosyl -(1 → 2)-β- d-galactopyranosyl -(1 → 3)][β- d-glucopyranosyl -(1 → 6)] β- d-galactopyranoside. The structures of the compounds were elucidated by 1D and 2D NMR techniques and from other spectroscopic evidence.
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