Lavandulifolioside B: a new phenylethanoid glycoside from the aerial parts of Stachys lavandulifolia Vahl.
Reversed-phase preparative HPLC analyses of the methanol extract of the aerial parts of Stachys lavandulifolia afforded a new phenylethanoid glycoside, 4,3',4'-trimethoxy-lavandulifolioside A, named lavandulifolioside B, together with three other known phenylethanoid glycosides, lavandulifolioside A, verbascoside and leucosceptoside A, and an iridoid glycoside 5-O-β-allopyranosyloxy-aucubin (5-O-β-allopyranosyl-monomelittoside). While the structures of the known compounds, except the iridoid glycoside, were established by direct comparison of their spectroscopic data with respective literature data, lavandulifolioside B and 5-O-β-allopyranosyloxy-aucubin were identified comprehensively by extensive 1D and 2D NMR analyses. The distribution of the isolated compounds within the genus Stachys has been discussed.
Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
Abbas
A
Delazar
Mohammad R
MR
Delnavazi
Lutfun
L
Nahar
Sadeigh B
SB
Moghadam
Mahdi
M
Mojarab
Abhishek
A
Gupta
Angela S
AS
Williams
M
M
Mukhlesur Rahman
Satyajit D
SD
Sarker
D006027:Glycosides / Q000737:chemistry / Q000302:isolation & purification; D057889:Iridoid Glycosides / Q000737:chemistry / Q000302:isolation & purification; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D035261:Plant Components, Aerial / Q000737:chemistry*; D010936:Plant Extracts / Q000737:chemistry; D031366:Stachys / Q000737:chemistry*
C560350:5-O-beta-allopyranosyloxy-aucubin; D006027:Glycosides; D057889:Iridoid Glycosides; D010936:Plant Extracts; C560351:lavandulifolioside B