Calodendrolide, a Degraded Limonoid fromCalodendrum capense
Autor: | N. H. Fischer, Mohamed S. Rajab, Frank R. Fronczek, Joseph K. Rugutt |
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Rok vydání: | 1998 |
Předmět: |
chemistry.chemical_classification
biology Stereochemistry Epoxide General Medicine Crystal structure Dihedral angle biology.organism_classification Limonoid General Biochemistry Genetics and Molecular Biology chemistry.chemical_compound chemistry Calodendrum capense X-ray crystallography medicine Molecule Lactone medicine.drug |
Zdroj: | Acta Crystallographica Section C Crystal Structure Communications. 54:950-952 |
ISSN: | 0108-2701 |
DOI: | 10.1107/s0108270197015151 |
Popis: | Calodendrolide, C 15 H 16 O 4 , has its epoxide β oriented and its 3'-furyl group a oriented. There are three independent molecules in the asymmetric unit, differing principally in the conformation of the 3'-furyl group with respect to the remainder of the molecule. One molecule has its 3'-furyl 0 atom α oriented, with an O-C-C=C torsion angle of 30.7 (4)°, while the other two molecules have their 3'-furyl 0 atoms β oriented, with O-C-C=C torsion angles of -136.9(3) and -134.5 (3)°. The epoxide is asymmetric, with mean CO distances of 1.436(2) and 1.464(2) A. |
Databáze: | OpenAIRE |
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