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(+–)-Decahydro-4-hydroxy-4a,8-dimethylazuleno[6,5-b]furan-2,5(3H)-dione (3aα,4α,4aβ,7aα,8α,9aβ)

✍ Scribed by Declercq, J. P. ;Germain, G. ;Van Meerssche, M. ;Kok, P. ;De Clercq, P. ;Vandewalle, M.

Book ID: 114526803
Publisher: International Union of Crystallography
Year: 1980
Weight: 291 KB
Volume: 36
Category: Article
ISSN: 0567-7408
DOI: 10.1107/s0567740880004359

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The title compound, C 15 H 20 O 4 , also known as dihydrohelenalin, is a drug obtained from a Chinese plant. It contains a seven-membered ring in a chair conformation and two fivemembered rings in twist conformations. The crystal packing involves O-HÁ Á ÁO hydrogen bonds. ## Related literature Fo