The molecule is an azaphilone that is 9,9a-dihydro-6H-furo[2,3-h]isochromene-6,8(6aH)-dione substituted by a 6-methyl-2-oxocyclohex-3-en-1-yl 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 and antimalarial activities. It has a role as an antimalarial, an antineoplastic agent and a Chaetomium metabolite. It is a gamma-lactone, an azaphilone and an organic heterotricyclic compound.
(6aR,9S,9aR)-6a-methyl-3-[(1S,6S)-6-methyl-2-oxocyclohex-3-en-1-yl]-9-[(2E,4E)-4,6,8-trimethyldeca-2,4-dienoyl]-9,9a-dihydrofuro[2,3-h]isochromene-6,8-dione