title: Caffeic acid derivatives from Eupatorium perfoliatum L.
abstract: From the ethyl acetate soluble fraction of a methanol/water extract of the herb Eupatorium perfoliatum L. (Asteraceae) six caffeic acid derivatives have been isolated and identified by 1D- and 2D-NMR spectroscopic data. Besides the common quinic acid derivatives 5-caffeoylquinic acid (chlorogenic acid), 3-caffeoylquinic acid (neochlorogenic acid) and 3,5-dicaffeoylquinic acid, three up to now unknown depsides of caffeic acid with glucaric acid have been isolated: 2,5-dicaffeoylglucaric acid, 3,4-dicaffeoylglucaric acid, and 2,4- or 3,5-dicaffeoylglucaric acid.
authors.affiliation: University of Münster, Institute for Pharmaceutical Biology and Phytochemistry, Hittorfstrasse 56, D-48149 Münster, Germany.
authors.forename: Mareike
authors.initials: M
authors.lastname: Maas
authors.forename: Frank
authors.initials: F
authors.lastname: Petereit
authors.forename: Andreas
authors.initials: A
authors.lastname: Hensel
mesh_terms: D002109:Caffeic Acids / Q000737:chemistry* / Q000302:isolation & purification; D002726:Chlorogenic Acid / Q000031:analogs & derivatives*; D036602:Eupatorium / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D011801:Quinic Acid / Q000031:analogs & derivatives* / Q000737:chemistry / Q000302:isolation & purification
chemical_list: D002109:Caffeic Acids; C472707:caffeoylquinic acid; D011801:Quinic Acid; D002726:Chlorogenic Acid