Diterpenoid Alkaloids from Delphinium aemulans

Abstract

A new naturally occurring lycoctonine-type C₁₉-diterpenoid alkaloid aemulansine (1), together with ten known alkaloids (2–11), were isolated from the whole herb of Delphinium aemulans Navski. Their structures were elucidated by extensive spectroscopic analyses, including 1D, 2D NMR and HR-ESI-MS. Compounds 1–10 were also evaluated in vitro for cytotoxicity against A549, Hela and MCF-7 cells using the MTT method.

Keywords

Delphinium aemulans Diterpenoid alkaloids Aemulansine Cytotoxicity

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