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  • Title: Complete 1H and 13C NMR assignments of clerodane diterpenoids of Salvia splendens.
    Author: Fontana G, Savona G, Rodríguez B.
    Journal: Magn Reson Chem; 2006 Oct; 44(10):962-5. PubMed ID: 16835898.
    Abstract:
    Unambiguous and complete assignments of 1H and 13C NMR chemical shifts for five clerodane diterpenes, four of them isolated from Salvia splendens (salviarin, splendidin and splenolides A and B) and one obtained by acetylation of splenolide A, are presented. The assignments are based on 2D shift-correlated [1H,1H-COSY, 1H,13C-gHSQC-1J(C,H) and 1H,13C-gHMBC-nJ(C,H) (n=2 and 3)] and nuclear Overhauser effect (NOE) experiments. The conformation of the rings of these compounds is supported by the 3J(H,H) values and NOE results.
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