Thonningianins A and B, new antioxidants from the African medicinal herb Thonningia sanguinea.
Ohtani II, Gotoh N, Tanaka J, Higa T, Gyamfi MA, Aniya Y. Thonningianins A and B, new antioxidants from the African medicinal herb Thonningia sanguinea. J Nat Prod. 2000 May; 63(5):676-9.