title: Two A-type proanthocyanidins from Prunus armeniaca roots.
abstract: 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.
authors.affiliation: Department of Chemistry, HNB Garhwal University, (Garhwal) 246 174, Srinagar, India.
authors.forename: D
authors.initials: D
authors.lastname: Prasad
mesh_terms: D000872:Anthocyanins / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D010936:Plant Extracts / Q000737:chemistry*; D018517:Plant Roots; D010946:Plants, Medicinal / Q000737:chemistry*; D044945:Proanthocyanidins
chemical_list: D000872:Anthocyanins; D010936:Plant Extracts; D044945:Proanthocyanidins; C013221:proanthocyanidin