1.
Fitoterapia
; 72(5): 591-3, 2001 Jun.
Artigo
em Inglês
| MEDLINE
| ID: mdl-11429265
RESUMO
The isolation of three saponins, 24-hydroxytormentic acid ester glucoside (1), niga-ichigoside F1 (2) and niga-ichigoside F2 (3), from the stem bark of Strasburgeria robusta, an endemic plant from New Caledonia, is reported.
Assuntos
Magnoliopsida , Plantas Medicinais/química , Saponinas/química , Humanos , Espectroscopia de Ressonância Magnética , Caules de Planta
2.
J Nat Prod
; 64(12): 1588-9, 2001 Dec.
Artigo
em Inglês
| MEDLINE
| ID: mdl-11754623
RESUMO
Two new 27-nor-triterpenoid saponins, pyrocincholic acid 3 beta-O-beta-D-quinovopyranosyl-28-[beta-D-glucopyranosyl(1-->6)-beta-D-glucopyranosyl] ester (1) and pyrocincholic acid 3 beta-O-beta-D-quinovopyranosyl(1-->6)-beta-D-glucopyranosyl-28-[beta-D-glucopyranosyl(1-->2)-beta-D-glucopyranosyl] ester (2) were isolated from the stem bark of Isertia pittieri, together with two known bidesmosidic quinovic acid glycosides. The structures of 1 and 2 were determined on the basis of spectroscopic studies.
