Triterpenoid saponins from Isertia pittieri.
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.
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Laboratoire de Pharmacognosie, Faculté de Pharmacie, CNRS UMR7081, Université Louis Pasteur Strasbourg, BP 24, 67401 Illkirch Cedex, France.
Weniger
B
B
Lobstein
A
A
Pouplin
T
T
Polat
M
M
Aragón
R
R
Anton
R
R
D002851:Chromatography, High Pressure Liquid; D003105:Colombia; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D024301:Plant Bark / Q000737:chemistry; D018547:Plant Stems / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D019666:Rubiaceae / Q000737:chemistry*; D012503:Saponins / Q000737:chemistry / Q000302:isolation & purification*; D013055:Spectrophotometry, Infrared; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification*
D012503:Saponins; D014315:Triterpenes; C446580:pyrocincholic acid 3-O-quinovopyranosyl(1-6)-glucopyranosyl-28-(glucopyranosyl(1-2)-glucopyranosyl) ester; C446579:pyrocincholic acid 3-O-quinovopyranosyl-28-(glucopyranosyl(1-6)-glucopyranosyl)ester