Spectral assignments of new diterpenes from  Hyptis martiusii  Benth | Zendy

da Cruz Araújo Edigênia Cavalcante | Zendy; Sousa Lima Mary Anne | Zendy; Rocha Silveira Edilberto | Zendy

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Spectral assignments of new diterpenes from Hyptis martiusii Benth

Author(s) -

da Cruz Araújo Edigênia Cavalcante,

Sousa Lima Mary Anne,

Rocha Silveira Edilberto

Publication year - 2004

Publication title -

magnetic resonance in chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.483

H-Index - 72

eISSN - 1097-458X

pISSN - 0749-1581

DOI - 10.1002/mrc.1489

Subject(s) - abietane , diterpene , chemistry , two dimensional nuclear magnetic resonance spectroscopy , stereochemistry , spectral analysis , proton nmr , spectroscopy , physics , quantum mechanics

The structural characterization of two new abietanes and a new spiro‐fused tricyclic diterpene isolated from the roots of Hyptis martiusii is described. The first member of a new class of rearranged abietane diterpenoids designated martiusane was characterized by the use of 1D NMR and several 2D shift correlated NMR pulse sequences ( 1 H,1H‐COSY, HMQC, HMBC and NOESY). Unambiguous 1 H and 13 C chemical shift assignments for all compounds are reported. Copyright © 2004 John Wiley & Sons, Ltd.

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