1976 Volume 40 Issue 9 Pages 1793-1796
The structure of a new hydroxy terpenoid acid, 6 (S)-isopropyl-3ξ-methyl-3ξ-hydroxy-9-oxo-4 E-decenoic acid (la), isolated from a solvent-extract of Turkish tobacco, was elucidated by the spectroscopic properties and chemical evidence. This compound was suggested to be derived from thunberganoid diterpenoids and be a precursor of two dienoic acids, 6 (S)-isopropyl-3-methyl-9-oxo-2 E, 4 E-decadienoic acid (3 a) and 6 (S)-isopropyl-3-methyl-9-oxo-2 Z, 4 E-decadienoic acid (4 a) in Turkish tobacco.
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