: Three new solanidane alkaloids bearing a 22,23-
epoxy ring (1−3) and four known compounds were isolated
from leaves of Solanum campaniforme. The structures were
determined using spectroscopic techniques, including 1D
and 2D NMR, and HRESIMS experiments. The antiophidic
activity of the alkaloids was tested against Bothrops pauloensis
venom. Compounds 1−3 completely inhibited myotoxicity
without inhibiting phospholipase A2 activity of the venom,
while hemorrhage and skin necrosis were significantly reduced
in the presence of alkaloids 1 and 2.