Diterpenoid Alkaloids from Delphinium yunnanense

[摘要]：Three new diterpenoid alkaloids, along with eleven known alkaloids, were isolated from the whole herbs of Delphinium yunnanense. The new alkaloids include a rearranged-type C-19-diterpenoid alkaloid, named yunnanenseine A (1), and two hetisine-type C-20-diterpenoid alkaloids, named yunnanenseine B and C (2 and 3, resp.). Their structures were elucidated by detailed NMR-spectroscopic studies.

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