Acanthoic acid
| Autor: | Sunisa Suwancharoen, Wantanee Tommeurd, Chuttree Phurat, Nongnuj Muangsin, Surachai Pornpakakul |
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| Jazyk: | angličtina |
| Rok vydání: | 2010 |
| Předmět: | |
| Zdroj: | Acta Crystallographica Section E, Vol 66, Iss 7, Pp o1531-o1531 (2010) |
| Druh dokumentu: | article |
| ISSN: | 16005368 1600-5368 |
| DOI: | 10.1107/S1600536810019483 |
| Popis: | The title compound [systematic name: (1R,4aR,7S,8aS,10aS)-1,4a,7-trimethyl-7-vinyl-1,2,3,4,4a,6,7,8,8a,9,10,10a-dodecahydrophenanthrene-1-carboxylic acid], C20H30O2, is a pimarane-type diterpene extracted from Croton oblongifolius. There are two independent molecules in the asymmetric unit. In both of these, the six-membered rings A, B and C adopt chair, boat and half-chair conformations, respectively. Rings A and B are trans-fused. The two molecules in the asymmetric unit form O—H...O hydrogen-bonded R22(8) dimers. The absolute configuration was assigned on the basis of the published literature on analogous structures. |
| Databáze: | Directory of Open Access Journals |
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