Manoyl Oxide α-Arabinopyranoside and Grindelic Acid Diterpenoids from Grindelia integrifolia

Two new manoyl oxide-alpha-arabinopyranoside diterpenoids, 15-hydroxy-13-epi-manoyl oxide-14-O-alpha-L-arabinopyranoside (tarapacol-14-O-alpha-L-arabinopyranoside) (1) and 15-acetoxy-13-epi-manoyl oxide-14-O-alpha-L-arabinopyranoside (tarapacol-15-acetate-14-O-alpha-L-arabinopyranoside) (2), as well...

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Veröffentlicht in:	Journal of natural products (Washington, D.C.) D.C.), 2001-10, Vol.64 (10), p.1365-1367
Hauptverfasser:	AHMED, Ahmed A., MAHMOUD, Ahmed A., AHMED, Usama M., EL-BASSUONY, Ashraf A., ABD EL-RAZK, Mohamed H., PARE, Paul W., KARCHESY, Joe
Format:	Artikel
Sprache:	eng
Schlagworte:	Analytical, structural and metabolic biochemistry Asteraceae - chemistry Biological and medical sciences Chemical constitution Chromatography, High Pressure Liquid Chromatography, Thin Layer Diterpenes - chemistry Diterpenes - isolation & purification Fundamental and applied biological sciences. Psychology Glycosides - chemistry Glycosides - isolation & purification Magnetic Resonance Spectroscopy Mass Spectrometry Molecular Structure Other biological molecules Plant physiology and development Plants, Medicinal - chemistry Spectrophotometry, Infrared Stereoisomerism Terpenes, steroids. Hormones
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Zusammenfassung:	Two new manoyl oxide-alpha-arabinopyranoside diterpenoids, 15-hydroxy-13-epi-manoyl oxide-14-O-alpha-L-arabinopyranoside (tarapacol-14-O-alpha-L-arabinopyranoside) (1) and 15-acetoxy-13-epi-manoyl oxide-14-O-alpha-L-arabinopyranoside (tarapacol-15-acetate-14-O-alpha-L-arabinopyranoside) (2), as well as a new grindelic acid derivative, 19-hydroxygrindelic acid (3), together with five known diterpenoids (tarapacol, tarapacanol A, grindelic acid, methyl grindeloate, 3beta-hydroxygrindelic acid, 4) were isolated from the aerial parts of Grindelia integrifolia. The structures of 1-3 were elucidated by spectral data analysis.
ISSN:	0163-3864 1520-6025
DOI:	10.1021/np010273n