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Complete 1H and 13C NMR assignments of aurasperone A and fonsecinone A, two bis-naphthopyrones produced by Aspergillus aculeatus.

Campos FR, Barison A, Daolio C, Ferreira AG, Rodrigues-Fo E

Departamento de Química, Universidade Federal de São Carlos, Rod. Washington Luiz, CP 676, CEP 13565-905, São Carlos, SP, Brazil.

Complete assignments of 1H and 13C NMR chemical shifts of the polyketides aurasperone A and fonsecinone A were made by means of nuclear Overhauser enhancement and heteronuclear NMR correlation experiments. These compounds were isolated for the first time from Aspergillus aculeatus, an endophytic fungus obtained from leaves of Melia azedarach(Meliaceae).

Published 3 October 2005 in Magn Reson Chem, 43(11): 962-5.
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