Piepunine, A Novel Bis-diterpenoid Alkaloid from the Roots of Aconitum piepunense

[摘要]：Further investigation on the roots of Aconitum piepunense led to the isolation of a novel bis-diterpenoid alkaloid designated as piepunine (1) Its structure was established by extensive interpretation of its 1D- and 2D NMR data, high-resolution ESI-MS, and IR spectra Piepunine represents the first example of an atisine - denudatine-type bis diterpenoid alkaloids.

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