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A new azaphilone derivative, falconensin H (6), was isolated from mycelia of Emericella falconensis, together with previously reported falconensins A-D (1-4) and 3, 3'-dihydroxy-5, 5'-dimethyldiphenyl ether (5). The structure of 6 was elucidated by spectroscopic investigation and chemical correlations. Among the compounds isolated, only 5 showed antibacterial activity.
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Itabashi et al. (1993) studied this question.
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