(1R,3Z,4S,4aα,6R,8aβ,9S,10R)-3,4,4a,5,6,7,8,8a-Octahydro-4,6,9-trihydroxy-3-(hydroxymethylene)-1,6,8β,9-tetramethyl-10-[(R)-1-methylpropyl]-1,4-ethanonaphthalen-2(1H)-one

ChEBI: Betaenone A is a carbotricyclic compound that is tricyclo[6.2.2.0(2,7)]dodecan-9-one which is substituted by hydroxy groups at positions 1, 4, and 11; by methyl groups at positions 4, 6, 8, and 11; by a hydroxymethylene group at position 10; and by a (2R)-butan-2-yl group at position 12 (the 1S,2S,4R,6R,7S,8R,10Z,11S,12R stereoisomer). A phytotoxin produced by Pleospora betae, the causal fungus of leaf spot disease on sugar beet. It has a role as a fungal metabolite and a phytotoxin. It is a 3-oxo aldehyde, a bridged compound, a carbotricyclic compound and a tertiary alcohol.