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Journal of the Brazilian Chemical Society

versão impressa ISSN 0103-5053

Resumo

CORREA, Marivaldo J. C et al. Biotransformation of chalcones by the endophytic fungus Aspergillus flavus isolated from Paspalum maritimum trin. J. Braz. Chem. Soc. [online]. 2011, vol.22, n.7, pp.1333-1338. ISSN 0103-5053.  http://dx.doi.org/10.1590/S0103-50532011000700019.

The fungus Aspergillus flavus isolated as endophytic of the plant Paspalum maritimum Trin. was evaluated for its potential application in biotransformation reactions. The compounds chalcone (1), 3,4,5-trimethoxychalcone (2) and 2,3,4,4'-tetramethoxychalcone (3) were biotransformed, respectively, in dihydrochalcone (4), 3,4,5-trimethoxydihydrochalcone (5) and 2,3,4,4'-tetramethoxydihydrochalcone (6). The structures were elucidated by spectroscopic methods including 1D and 2D NMR techniques, and MS analysis. The dihydrochalcones 5 and 6 are new compounds.

Palavras-chave : biotransformations; Aspergillus flavus; Paspalum maritimum; chalcones; dihydrochalcones.

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