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Flavonol and iridoid glycosides of Ajuga remota aerial parts |
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| Authors: | Manguro Lawrence O Arot Wagai Samuel Otieno Lemmen Peter |
| Institution: | a Chemistry Department, Maseno University, Box 333, Maseno, Kenya b Botany Department, Maseno University, Box 333, Maseno, Kenya c Technische Universitaet Muenchen, Institut fuer Organische Chemie und Biochemie, Lehrstuhl 1, Lichtenbergstrasse 4, 85747-Garching, Germany |
| Abstract: | Six flavonol glycosides characterised as myricetin 3-O-alpha-rhamnosyl-(1'-->2')-alpha-rhamnoside-3'-O-alpha-rhamnoside, 5'-O-methylmyricetin 3-O-alpha-rhamnosyl (1'-->2')]alpha-rhamnosyl (1'-->4')]-beta -glucoside-3'-O-beta-glucoside, 5'-O-methylmyricetin 3-O-alpha-rhamnosyl (1'-->2')-alpha-rhamnoside 3'-O-beta-galactoside, kaemferol 3-O-rutinoside-7-O-rutinoside, myricetin 3-O-rutinoside-3'-O-alpha-rhamnoside, myricetin 3-O-beta-glucosyl (1'-->2')-beta-glucoside-4'-O-beta-glucoside together with two iridoid glycosides identified as 6,8-diacetylharpagide and 6,8-diacetylharpagide-1-O-beta-(3',4'-di-O-acetylglucoside) have been isolated from extract of Ajuga remota aerial parts. Also isolated from the same extract were known compounds; kaempferol 3-O-alpha-rhamnoside, quercetin 3-O-beta-glucoside, quercetin 3-O-rutinoside, 8-acetylharpagide, ajugarin I and ajugarin II. |
| Keywords: | Ajuga remota Labiatae Flavonol glycosides Iridoid glycosides Aerial parts |
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