Title
11β,13-Dihydro-lactucin-8-O-acetate hemihydrate
Document Type
Article
Publication Date
9-30-2009
Abstract
THE TITLE STRUCTURE (SYSTEMATIC NAME: 9-hydroxy-methyl-3,6-di-methyl-3-methyl-ene-2,7-dioxo-3,3a,4,5,9a,9b-hexa-hydro-azu-leno[4,5-b]furan-4-yl acetate hemihydrate), C(17)H(20)O(6)·0.5H(2)O, from Lactuca floridana, has two independent sesquiterpene lactone mol-ecules in the asymmetric unit. Both have their seven-membered rings in the chair conformation. In the crystal, the OH groups and the water mol-ecule form classical O-H⋯O hydrogen bonds with O⋯O distances in the range 2.6750 (17)-2.8160 (18) Å.
Publication Source (Journal or Book title)
Acta crystallographica. Section E, Structure reports online
First Page
o2564
Last Page
5
Recommended Citation
Fronczek, C. F., Gomez-Barrios, M. L., Fischer, N. H., & Fronczek, F. R. (2009). 11β,13-Dihydro-lactucin-8-O-acetate hemihydrate. Acta crystallographica. Section E, Structure reports online, 65 (Pt 10), o2564-5. https://doi.org/10.1107/S160053680903829X