A naphthopyran that is 3,4-dihydro-naphtho[2,3-c]pyran-1-one which is substituted by a 2-methoxy-2-oxoethyl group at position 3, a methoxy group at position 7, and hydroxy groups at positions 9 and 10 (the 3S enantiomer). It is produced by the fungus Paecilomyces variotii, isolated from the larvae of the mountain pine beetle Dendroctonus ponderosae. The biological precursor of viriditoxin.
Stars
This entity has been manually annotated by the ChEBI Team.