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Cadinane Sesquiterpenes from Curcuma parviflora
- Sadhu, Samir Kumar, Tamaki, Mayu, Ohtsuki, Takashi, Toume, Kazufumi, Koyano, Takashi, Kowithayakorn, Thaworn, Ishibashi, Masami
- Journal of natural products 2009 v.72 no.4 pp. 782-783
- sesquiterpenoids, plant extracts, Curcuma, spectral analysis, chemical structure
- Two new cadinane sesquiterpenes (1 and 2) were isolated from Curcuma parviflora, and their structures were elucidated by spectroscopic data. Compound 1, 4α-acetoxycadina-2,9-diene-1,8-dione, possesses two conjugated enone chromophores, while compound 2, 1α,3α,4β-trihydroxy-9-cadinen-8-one, has an enone moiety with three hydroxy groups. Isolation of these cadinane monomers may reasonably suggest that parviflorenes are biogenetically classified as cadinane dimers.