Carbon-13 NMR spectral studies on some labdane diterpenoids

Carbon‐13 NMR signal assignments of the labdane diterpenoids andrographolide and 14‐deoxyandrographolide, along with their acetates, and isodeoxyandrographolide have been made. This study indicates that the C‐6 and C‐11 resonance assignments of isovirescenol‐B, made earlier, should be interchanged....

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Veröffentlicht in:Organic Magnetic Resonance 1981-05, Vol.16 (1), p.75-77
Hauptverfasser: Patra, Amarendra, Mitra, Alok K., Biswas, Swapna, Gupta, Chitra Das, Basak, Ajoy, Barua, A. K.
Format: Artikel
Sprache:eng
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Zusammenfassung:Carbon‐13 NMR signal assignments of the labdane diterpenoids andrographolide and 14‐deoxyandrographolide, along with their acetates, and isodeoxyandrographolide have been made. This study indicates that the C‐6 and C‐11 resonance assignments of isovirescenol‐B, made earlier, should be interchanged.
ISSN:0030-4921
1097-458X
DOI:10.1002/mrc.1270160122