Structural and spectral assignment of a new diterpenoid isolated from Ballota undulata and a complete 1H and 13C NMR data assignment for three other structurally related compounds

descriptionPublicationkeyboard_double_arrow_right Article 30 Jul 2007 English Publisher:WileyJournal:Magnetic Resonance in Chemistry, volume 45, pages 899-901 (issn: 0749-1581, eissn: 1097-458X,

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Authors: Hussein, Ahmed A.; Jimeno, M. Luisa; Rodríguez, Benjamín;

doi: 10.1002/mrc.2050

pmid: 17661434

handle: 10261/34518

Structural and spectral assignment of a new diterpenoid isolated from Ballota undulata and a complete 1H and 13C NMR data assignment for three other structurally related compounds

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Abstract

AbstractThe structure of 3β‐hydroxyballotinone, a new labdane diterpenoid isolated from Ballota undulata, has been established by NMR spectroscopic studies. In addition, complete and unambiguous assignments of the 1H and 13C NMR spectra of three other already known labdanes (ballotinone, ballonigrin and ballonigrinone) isolated from the same source have been achieved. 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 NOE experiments. Copyright © 2007 John Wiley & Sons, Ltd.

Related Organizations

Spanish National Research Council
Spain
Centro Química Orgánica "LORA-TAMAYO"
Spain
National Research Centre
Egypt

Keywords

13C NMR, Carbon Isotopes, Magnetic Resonance Spectroscopy, Molecular Structure, 1H NMR, diterpenes, Ballota undulata, Ballota, 1D NMR, NMR, 3β-hydroxyballotinone, 2D NMR, labdane derivatives, Diterpenes, Protons

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