A New Irregular Trihydroxy Sesquiterpene from Teucrium mascatense

A New Irregular Trihydroxy Sesquiterpene from Teucrium mascatense

A new trihydroxy sesquiterpene, rel‐(1R,4aR,5S,6S,7S,8aR)‐decahydro‐6,8a‐dimethyl‐5‐(propan‐2‐yl)naphthalene‐1,6,7‐triol (1), has been isolated as a result of the phytochemical investigation on the CH2Cl2 extract of Teucrium mascatense. The structure elucidation of the new constituent was carried ou...

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Veröffentlicht in:Helvetica chimica acta 2015-10, Vol.98 (10), p.1462-1465
Hauptverfasser: Ali, Liaqat, Hussain, Imtiaz, Rizvi, Tania Shamim, Khan, Abdul Latif, Shujah, Shaukat, Al-Sahi, Jawahar Mohammed Salim, Al-Harrasi, Ahmed, Hussain, Javid
Format: Artikel
Sprache:eng
Schlagworte:
NMR
Nuclear magnetic resonance
Sesquiterpenoids
Teucrium mascatense
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Zusammenfassung:A new trihydroxy sesquiterpene, rel‐(1R,4aR,5S,6S,7S,8aR)‐decahydro‐6,8a‐dimethyl‐5‐(propan‐2‐yl)naphthalene‐1,6,7‐triol (1), has been isolated as a result of the phytochemical investigation on the CH2Cl2 extract of Teucrium mascatense. The structure elucidation of the new constituent was carried out by the combined use of 1D‐ (1H‐ and 13C‐NMR) and 2D‐NMR (HMBC and HSQC) spectroscopic analysis, along with mass spectrometric techniques. In addition to the new constituent 1, the known metabolite 2, previously isolated from Crataegus pinnatifida, was also identified.
ISSN:0018-019X
1522-2675
DOI:10.1002/hlca.201500100