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In the present study, three new aconitine-type diterpenoid alkaloids brochyponines
A–C ( 1–3 ) were isolated from the roots of Aconitum brevicalcaratum. Their structures
were established on the basis of extensive spectroscopic analyses (IR, HR-ESI-MS,
and 1D and 2D NMR). The NMR data of salt form for compound 1 in CDCl 3 were also