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Phenylpropanoid acid esters from Korean propolis and their antioxidant activities
Affiliation:1. Drug Design and Medicinal Chemistry Lab, Department of Pharmaceutical Chemistry, Faculty of Pharmacy and Bioinformatics Infrastructure Facility (BIF), Jamia Hamdard, New Delhi 110062, India;2. School of Biochemistry, DAVV, Khandwa Road, Indore, India;1. Bioscreening Unit, Department of Pharmaceutical Chemistry and Pharmacognosy, Faculty of Pharmaceutical Sciences and Center of Excellence for Innovation in Chemistry, Naresuan University, Phitsanulok 65000, Thailand;2. Department of Pharmaceutical Chemistry and Pharmacognosy, Faculty of Pharmaceutical Sciences and Center of Excellence for Innovation in Chemistry, Naresuan University, Phitsanulok 65000, Thailand;3. Department of Pharmaceutical Technology, Faculty of Pharmaceutical Sciences and Center of Excellence for Innovation in Chemistry, Naresuan University, Phitsanulok 65000, Thailand;4. Department of Chemistry, Faculty of Science, Naresuan University, Phitsanulok 65000, Thailand;1. Department of Chemistry and Biochemistry, University of Arizona, Tucson, AZ 85721, USA;2. Department of Pharmacology, University of Arizona, Tucson, AZ 85721, USA;1. Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow G4 0RE, Scotland, UK;2. Apiceutical Research Centre, Whitby, North Yorkshire, UK;1. Departamento de Farmacología, Laboratorio de Farmacoquímica, Facultad de Farmacia, Universidad de Valencia, 46100 Burjassot, Valencia, Spain;2. Departamento de Química Orgánica, Facultad de Ciencias, Universidad de Málaga, 29071 Málaga, Spain;3. Départament des Sciences Expérimentales, Institut de Recherches Servier, 92150 Suresnes, France;4. UMR CNRS 8076, LERMIT, Université Paris-Sud, Laboratoire de Pharmacognosie, UFR de Pharmacie, Châtenay-Malabry F-92296, France;5. Centro de Ecología Química Agrícola-Instituto Agroforestal Mediterraneo, UPV, Campus de Vera, Edificio 6C, 46022 Valencia, Spain
Abstract:
Ten phenylpropanoic acid esters were isolated from an ethanolic extract of Korean propolis. Their structures were elucidated by spectroscopic methods including NMR and ESI-MS. Caffeic acid esters with catechol moiety exhibited significant ABTS and DPPH radical scavenging activity and protective effect against DNA damage by a Fenton reaction.
Keywords:Propolis  Phenylpropanoic acid esters  Antioxidant activity
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