title: Two new arylnaphthalide lignans from Justicia flava roots.
abstract: Orosunol and 8-demethylorosunol, two new 1-aryl-2,3-naphthalide lignans, have been isolated from Justicia flava root. Structures IV and V respectively have been proposed for them by spectral (UV, IR, PMR, (13)C NMR, and MS) and chemical evidence.
authors.affiliation: Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Ife, Ile-Ife, Nigeria.
authors.forename: A A
authors.initials: AA
authors.lastname: Olaniyi