Adhumulone

3,5,6-trihydroxy-2-(2-methylbutanoyl)-4,6-bis(3-methylbut-2-enyl)cyclohexa-2,4-dien-1-one

3,5,6-Trihydroxy-2,6-bis(3-methyl-2-butenyl)-4-(2-methyl-1-oxobutyl)-2,4-cyclohexadien-1-one