title: New phenolic esters from the resinous exudate of Haplopappus taeda.
abstract: Two new phenolic esters 9-trans-p-coumaroyloxy-alpha-terpineol (1) and 7-trans-p-coumaroyloxy-taedol (2), both endowed with free radical scavenger activity and cleroda-3,13 (E)-dien-15,18-diol (3) for which a cis stereochemistry at the decalin junction was found, were isolated from the resinous exudate from Haplopappus taeda upper parts.
authors.affiliation: Departamento de Química, Facultad de Ciencias, Universidad de Chile, Las Palmeras 3425, Santiago, Chile. ffaini@uchile.cl
authors.forename: Francesca
authors.initials: F
authors.lastname: Faini
authors.forename: Cecilia
authors.initials: C
authors.lastname: Labbé
authors.forename: René
authors.initials: R
authors.lastname: Torres
authors.forename: Jesús M
authors.initials: JM
authors.lastname: Rodilla
authors.forename: Lucía
authors.initials: L
authors.lastname: Silva
authors.forename: Franco
authors.initials: F
authors.lastname: Delle Monache
mesh_terms: D001713:Biphenyl Compounds; D004952:Esters / Q000008:administration & dosage / Q000737:chemistry / Q000494:pharmacology / Q000627:therapeutic use; D016166:Free Radical Scavengers / Q000008:administration & dosage / Q000737:chemistry / Q000494:pharmacology* / Q000627:therapeutic use; D031206:Haplopappus; D006801:Humans; D020128:Inhibitory Concentration 50; D010636:Phenols / Q000008:administration & dosage / Q000737:chemistry / Q000494:pharmacology / Q000627:therapeutic use; D008517:Phytotherapy; D010851:Picrates / Q000737:chemistry; D010936:Plant Extracts / Q000008:administration & dosage / Q000737:chemistry / Q000494:pharmacology* / Q000627:therapeutic use; D018515:Plant Leaves
chemical_list: D001713:Biphenyl Compounds; D004952:Esters; D016166:Free Radical Scavengers; D010636:Phenols; D010851:Picrates; D010936:Plant Extracts; C004931:1,1-diphenyl-2-picrylhydrazyl