Antiprotozoal and antioxidant alkaloids from Alternanthera littoralis - Koolen, Hector Henrique Ferreira; Pral, Elizabeth Mieko Furusho; Alfieri, Silvia Celina; Marinho, Jane V. N.; Serain, Alessandra F.; Hernández-Tasco, Alvaro José; Andreazza, Nathalia Luiza; Salvador, Marcos José (Phytochemistry, 2017)