Laccaridione B

Laccaridione B is an organic heterotricyclic compound that is 1H-benzo[g]isochromene-8,9-dione substituted by an ethoxy group at position 1, hydroxy group at position 10, a methoxy group at position 7 and a 4-methylhex-2-en-2-yl group at position 3. Isolated from the stem of the fruiting bodies of the basidiomycete strain Laccaria amethystea, it exhibits inhibitory activity against proteases. It has a role as a metabolite and a protease inhibitor. It is a member of orthoquinones, an organic heterotricyclic compound, a member of phenols, a member of isochromenes, an enol ether and a cyclic acetal.