科研之友
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摘要
A novel norditerpenoid alkaloid, macrorhynine C (1), together with three known compounds, was isolated from Aconitum macrorhynchum. The structure of the new alkaloid was elucidated on the basis of spectral analyses as (1 alpha, 6 alpha, 16 beta)-3-hydroxy-8-acetyloxy-13-hydroxy-1,6,16-trimethoxy-4-(methoxymethyl)-19-ene-aconitan-14-yl 4-methoxybenzoate (1). The novel compound was found to contain the rare C(19)=N azomethine group. Compounds 2-4 were obtained from this species for the first time.
