The molecule is an azaphilone that is 6H-furo[2,3-h]isochromene-6,8(6aH)-dione substituted by a chloro group at position 5, a 3-hydroxy-2-methylbutanoyl group at position 9, a methyl group at position 6a and a 3-methylpent-1-en-1yl group at position 3. Isolated from Chaetomium globosum, it exhibits natifungal activity against plant pathogenic fungi. It has a role as an antifungal agent and a Chaetomium metabolite. It is an azaphilone, a gamma-lactone, an organochlorine compound, an enone, a secondary alcohol, a beta-hydroxy ketone and an organic heterotricyclic compound.
(6aS)-5-chloro-9-[(2S,3R)-3-hydroxy-2-methylbutanoyl]-6a-methyl-3-[(E,3S)-3-methylpent-1-enyl]furo[2,3-h]isochromene-6,8-dione