The molecule is an azaphilone that is 6H-furo[2,3-h]isochromene-6,8(6aH)-dione substituted by a 4-hydroxy-2-methyl-6-oxocyclohexyl group at position 3, a methyl group at position 6a, and a 4,6,8-trimethyldeca-2,4-dienoyl group at position 9. Isolated from Chaetomium longirostre, it exhibits cytotoxic activities. It has a role as a Chaetomium metabolite and an antineoplastic agent. It is a gamma-lactone, an azaphilone, an organic heterotricyclic compound and an enone.
(6aS)-3-[(1S,2S,4R)-4-hydroxy-2-methyl-6-oxocyclohexyl]-6a-methyl-9-[(2E,4E)-4,6,8-trimethyldeca-2,4-dienoyl]furo[2,3-h]isochromene-6,8-dione