Diterpenoid Alkaloids from Delphinium tatsienense

[摘要]：Three new C-20-diterpenoid alkaloids, along with twenty-two known alkaloids, were isolated from the whole herbs of Delphinium tatsienense. The new alkaloids include a vakognavine-type C-20-diterpenoid alkaloid, designated as tatsienenseine A (1), and two hetisine-type C-20-diterpenoid alkaloids, designated as tatsienenseines B (2) and C (3). Their structures were elucidated by IR, HR-ESI-MS, 1D- and 2D-NMR analyses.

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