Two A-type proanthocyanidins from Prunus armeniaca roots.
Two A-type proanthocyanidins, ent-epiafzelechin-(4alpha-->8, 2alpha-->O-->7)-(-)-epicatechin and its isomer, ent-epiafzelechin-(4alpha-->8', 2alpha-->O-->7')-catechin, together with other known compounds, have been isolated from the roots of Prunus armeniaca. The concerted use of one- and two-dimensional NMR methods (1H-(1)H COSY, HMQC, HMBC and NOESY) allowed the identification of these compounds.
Prasad
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Department of Chemistry, HNB Garhwal University, (Garhwal) 246 174, Srinagar, India.
D000872:Anthocyanins / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D010936:Plant Extracts / Q000737:chemistry*; D018517:Plant Roots; D010946:Plants, Medicinal / Q000737:chemistry*; D044945:Proanthocyanidins
D000872:Anthocyanins; D010936:Plant Extracts; D044945:Proanthocyanidins; C013221:proanthocyanidin