Anthracene derivatives from Auxemma oncocalyx |
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| Authors: | Marques W B dos Santos H S Pessoa O D Braz-Filho R Lemos T L |
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| Affiliation: | Departamento de Química Orgánica e Inorganica, Universidade Federal do Ceará, Fortaleza, Brazil. |
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| Abstract: | Three anthracene derivatives, auxenone, oncocalyxonol and auxemim, were isolated from Auxemma ontocalyx. The structures of these compounds as 1,4,8-trihydroxy-2-methoxy-5-methyl-9,10-anthraquinone, rel-9alpha,11alpha-epoxy-1,4,8alpha,11alpha-tetrahydroxy-2-methoxy-8a beta-methyl-5,6,7,8,8a,9, 10,10a beta-octahydro-10-anthracenone and rel-8alpha,11beta-epoxy-2,11-dimethoxy-8a beta-methyl-5,6,7,8,8a,9-hexahydro-1,4-anthracenedione were determined by analysis of spectral data (1D and 2D NMR, IR, HREIMS and UV). |
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