Erratum to “Two novel nortriterpenes from the roots of Phlomis umbrosa” [Chin. Chem. Lett. 19 (2008) 1228–1230]

Two novel 28-noroleanane-derived spirocyclic triterpenoids with unusual skeleton structures, phlomishexaol C (1), phlomishexaol D (2) were isolated from the roots of Phlomis umbrosa. Their structures were elucidated by spectroscopic methods, including 1D, 2D nuclear magnetic resonance (NMR), high-resolution mass spectrometry (HR-MS).     

Three new C_(19)-diterpenoid alkaloids from Delphinium laxicymosum var. pilostachyum

Three new lycoctonine-type C19-diterpenoid alkaloids, laxicymine 1, laxicymisine 2, and laxicyminine 3 have been isolated from the whole herb of Delphinium laxicymosum var. pilostachyum W.T. Wang. Their structures were established by spectra data.