Manniosides G-J, New Ursane- and Lupane-Type Saponins from Schefflera mannii (Hook.f.) Harms

Simionne Lapoupée Kuitcha Tonga, Billy Toussie Tchegnitegni, Xavier Siwe-Noundou^*, Ulrich Joël Tsopmene, Beaudelaire Kemvoufo Ponou, Jean Paul Dzoyem, Madan Poka, Patrick H. Demana, Léon Azefack Tapondjou, Denzil R. Beukes, Edith M. Antunes^*, Rémy Bertrand Teponno^*