Verbascoside derivatives and iridoid glycosides from Penstemon crandallii.
The new phenylethanoid glycosides 2-O-acetyl-3'''-O-methylverbascoside and 2,4"-di-O-acetyl-3'''-O-methylverbascoside were isolated and identified from Penstemon crandallii. The major iridoid glycoside was plantarenaloside and no aucubin type iridoids were found. This contrasted with a previous analysis of P. teucrioides, from the same Penstemon subsection, which was dominated by aucubin derivatives.
Ismail
L D
LD
Department of Pharmacognosy, Al-Azhar University, Nasr City, Cairo, Egypt.
el-Azizi
M M
MM
Khalifa
T I
TI
Stermitz
F R
FR
D002236:Carbohydrate Conformation; D002240:Carbohydrate Sequence; D005960:Glucosides / Q000737:chemistry* / Q000302:isolation & purification; D006027:Glycosides / Q000737:chemistry* / Q000302:isolation & purification; D008958:Models, Molecular; D008968:Molecular Conformation; D008969:Molecular Sequence Data; D015394:Molecular Structure; D010636:Phenols; D010936:Plant Extracts; D010944:Plants / Q000737:chemistry*; D013329:Structure-Activity Relationship; D059808:Polyphenols
D005960:Glucosides; D006027:Glycosides; D010636:Phenols; D010936:Plant Extracts; C058956:acteoside; D059808:Polyphenols