Glycosylated nervogenic acid derivatives from Liparis condylobulbon (Reichb.f.) leaves.
Three new nervogenic acid glycosides, 1-O-alpha-L-rhamnopyranosyl 3,5-bis(3-methyl-but-2-enyl)-4-O-[alpha-L-rhamnopyranosyl-(1-->2)-beta-D-glucopyranosyl]-benzoate, 3,5-bis(3-methyl-but-2-enyl)-4-O-[alpha-L-rhamnopyranosyl-(1-->2)-beta-D-glucopyranosyl]-benzoic acid, and bis{3,5-bis(3-methyl-but-2-enyl)-4-O-[alpha-L-rhamnopyranosyl-(1-->2)-beta-D-glucopyranosyl]-benzoyl} 1,2-O-beta-d-glucopyranose, which we named condobulbosides A-C, were isolated from a methanol extract of the leaves of Liparis condylobulbon together with an apigenin C-glycoside, schaftoside. Their structures were established on the basis of spectral techniques, namely, UV, IR, HR-MS spectroscopy, both 1D and 2D NMR experiments, and chemical reactions.
Slapetová
Tereza
T
Department of Natural Drugs, University of Veterinary and Pharmaceutical Sciences Brno, Palackého 1-3, 612 42 Brno, Czech Republic.
Smejkal
Karel
K
Innocenti
Gabbriella
G
Dall'Acqua
Stefano
S
Heilmann
Jörg
J
Babula
Petr
P
Hamzová
Eva
E
Zemlicka
Milan
M
D006027:Glycosides / Q000737:chemistry* / Q000302:isolation & purification; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D009005:Monosaccharides / Q000737:chemistry / Q000302:isolation & purification; D029595:Orchidaceae / Q000737:chemistry*; D018515:Plant Leaves / Q000737:chemistry*; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet
D006027:Glycosides; D009005:Monosaccharides