摘要

Three new ranaconitine-type C-18-diterpenoid alkaloids, sinomontanines F (1), G (3), H (5), and a new lycoctonine-type C-19-diterpenoid alkaloid sinomontanine 1 (7), were isolated from the roots of Aconitum sinomontanum. The structures of the new alkaloids were determined by IR, H-1 NMR, C-13 NMR, MS spectra.