title: Chemistry of plants from Crete: stachyspinoside, a new flavonoid glycoside and iridoids from Stachys spinosa.
abstract: The new flavonoid glycoside stachyspinoside (1), and the three iridoids, 7-O-acetyl-8-epi-loganic acid (2), ajugol (3) and harpagide (4) were isolated from Stachys spinosa. The structures of these compounds were established on the basis of mass spectrometry (ESMS and tandem MS), one- and two-dimensional nuclear magnetic resonance experiments (COSY, COSY LR, HMQC, TOCSY and HMBC) as well as simple chemical derivatization.
authors.affiliation: Laboratory of Pharmacognosy, Department of Pharmacy, University of Athens, Zografou, Greece.
authors.forename: M
authors.initials: M
authors.lastname: Kotsos
authors.forename: N
authors.initials: N
authors.lastname: Aligiannis
authors.forename: S
authors.initials: S
authors.lastname: Mitaku
authors.forename: A L
authors.initials: AL
authors.lastname: Skaltsounis
authors.forename: C
authors.initials: C
authors.lastname: Charvala
mesh_terms: D000975:Antioxidants / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D002853:Chromatography, Liquid; D005419:Flavonoids / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D005960:Glucosides / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D006027:Glycosides / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D006115:Greece; D006868:Hydrolysis; D020128:Inhibitory Concentration 50; D057889:Iridoid Glycosides; D039823:Iridoids; D019686:Lamiaceae / Q000737:chemistry*; D013058:Mass Spectrometry; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D010946:Plants, Medicinal / Q000737:chemistry*; D011714:Pyrans / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D021241:Spectrometry, Mass, Electrospray Ionization; D013056:Spectrophotometry, Ultraviolet
chemical_list: C449201:7-O-acetyl-8-epi-loganic acid; D000975:Antioxidants; D005419:Flavonoids; D005960:Glucosides; D006027:Glycosides; D057889:Iridoid Glycosides; D039823:Iridoids; D011714:Pyrans; C449200:stachyspinoside; C033250:harpagide