Diterpenoid alkaloids from .

Three new diterpenoid alkaloids (, , ) and seventeen known () compounds were isolated from the whole plant of Munz (Ranunculaceae). Their structures were elucidated by various spectroscopic analyses, including IR, HR-ESI-MS, 1D and 2D NMR spectra. All compounds were evaluated for the inhibitory activity of Sf9 cells and compound exhibited the strongest cytotoxicity (IC = 8.