Rapid access to ketones related to oleanolic and ursolic acids |
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| Authors: | Rivero-Chan Braulio E Marrero Joaquín G Hernández-Ortega Simón Mena-Rejón Gonzalo J Miranda Luis D |
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| Affiliation: | Facultad de Química, Universidad Autónoma de Yucatán, Calle 41 No 421, Col. Industrial, C.P. 97150, Mérida, Yucatán, México. |
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| Abstract: | We describe in this article a process with which to obtain different ketones related to oleanolic and ursolic acids from a natural source, Salvia canariensis L., with minimal use of chromatography columns. Amongst the isolated compounds was 12α-bromo-3-oxo-olean-13, 28-olide (3), which was fully characterised, including a characterisation of its molecular configuration by X-ray crystallographic analysis by 1 and 2-dimensional NMR techniques. |
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