Clerodane Diterpenoids from Salvia splendens
- Authors: FONTANA G; SAVONA G; RODRIGUEZ B
- Publication year: 2006
- Type: Articolo in rivista (Articolo in rivista)
- OA Link: http://hdl.handle.net/10447/29253
Abstract
Four new clerodane diterpenoids, salvisplendins A-D (1-4), have been isolated from an acetone extract of the flowers of SalVia splendens, together with an artifact (5), arising from salvisplendin D (4) by addition of diazomethane, and the already known clerodane olearin (6). The structures of the new compounds (1-5) were established mainly by 1D and 2D NMR spectroscopic studies and, in the case of salvisplendin A (1), by chemical correlation with splenolide B (7). Complete 1H and 13C NMR assignments for olearin (6), not published hitherto, are also reported.