Investigation of the roots of Duroia hirsuta from Ecuador yielded the iridoid lactone duroin (1) together with 3,7,3',5'-tetramethoxy-4'-hydroxyflavone (2), 3,7,3'-trimethoxy-4',5'-dihydroxyflavone (3), and 7,3',5'-trimethoxy-3,4'-dihydroxyflavone (4) as novel constituents.
glycoside, Duroia hirsuta, duroin, iridoid lactone
Publication DOI: 10.1021/np9803631Journal NLM ID: 7906882Publisher: American Society of Pharmacognosy
Correspondence: Rastrelli L
Institutions: Dipartimento di Scienze Farmaceutiche, Facoltà di Farmacia, Università di Salerno, Piazza V. Emanuele 9, 84084, Penta di Fisciano (SA), Italy, and Centro Tecnologico de Recursos Amazonicos de la Organizacion de Pueblos Indigenos “Fatima” of Pastaza, Ecuador
Methods: 13C NMR, 1H NMR, NOE, IR, FAB-MS, HPLC, UV, optical rotation measurement, DEPT, COSY, HSQC