Crystal and molecular structure of jatrophane diterpenoid (2R,3R,4S,5R,7S,8S,9S,13S,14S,15R)-2,3,8,9-tetraacetoxy-5,14-bis(benzoyloxy)-15-hydroxy-7-(isobutanoyloxy)jatropha-6(17),11(E)-diene
| Autor: | Hequn Yang, Jiangyu Zhao, Samat Talipov, Lidiya Izotova, Haji Akber Aisa, Bakhtiyar Ibragimov |
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| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: | |
| Zdroj: | Acta Crystallographica Section E: Crystallographic Communications Acta Crystallographica Section E: Crystallographic Communications, Vol 75, Iss 12, Pp 1884-1887 (2019) |
| ISSN: | 2056-9890 |
| Popis: | A jatrophane diterpenoid was isolated from the fructus of Euphorbia sororia and its structure and absolute configuration have been established by X-ray crystallographic analysis. The structure of the jatrophane diterpenoid (ES2), C46H56O15, has orthorhombic (P212121) symmetry. The absolute configuration in the crystal has been determined as 2R,3R,4S,5R,7S,8S,9S,13S,14S,15R [the Flack parameter is −0.06 (11)]. The molecular structure features intramolecular O—H⋯O and C—H⋯O hydrogen bonding. In the crystal, C—H⋯O hydrogen bonds link the molecules into supramolecular columns parallel to the a axis. One of the acetoxy substituents is disordered over two orientations in a 0.826 (8):0.174 (8) ratio. |
| Databáze: | OpenAIRE |
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