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(-)-4-Hydroxy-5,6-dimethoxy-3-[(E)-2-methyl-1-oxo-4-hexenyl]pyridine-2(1H)-one is an antifungal metabolite of Trichoderma harzianum, a fungus that is also used as a fungicide.

Harzianopyridonean is an antifungal metabolite of Trichoderma harzianum, a fungus that is also used as a fungicide.