Three new dibenzofurans, porric acids A (1), B (2) and C (3), have been isolated from the bulbs of Allium porrum L. Their structures have been elucidated by a detailed spectroscopic analysis, including 2D HMBC and ROESY correlation experiments. When tested against Fusarium culmorum, porric acids A−C (1−3) were found to exhibit antifungal activity.
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Carotenuto et al. (1998) studied this question.
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