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Crystal structure and Hirshfeld surface analysis of 2-oxo-13-epi-manoyl oxide isolated from Sideritis perfoliata
(INT UNION CRYSTALLOGRAPHY, 2018)
The title compound, C20H32O2 (systematic name: 3-ethenyl-3,4a,7,7,10a-pentamethyldodecahydro-9H-benzo[f]chromen-9-one), was isolated from Sideritis perfoliata. In the crystal, molecules pack in helical supramolecular chains ...
Crystal structure and computational study of 3,4-dihydroxy-3-hydroxymethyl-9-methyl-6-methylidene-3a, 4,5,6,6a, 9,9a, 9b-octahydroazuleno[4,5-b]furan-2,8(3H,7H)-dione
(INT UNION CRYSTALLOGRAPHY, 2015)
In the molecule of title compound, C15H20O6, also known as cynarinin A, the cyclopentane ring having twist conformation and a gamma-lactone ring assuming an envelope conformation are trans-and cis-fused, respectively, to ...
Crystal structure of 3,4a, 7,7,10a-pentamethyl-3-vinyldodecahydro-1H-benzo[f]chromen-9-ol isolated from Sideritis perfoliata
(INT UNION CRYSTALLOGRAPHY, 2016)
The asymmetric unit of the title compound, C20H34O2, contains two crystallographically independent molecules (1 and 2) with similar conformations. In both molecules, the cyclohexane rings adopt a chair conformation, while ...