(-)-(3Ar,6ar)-3a,6a-二氢-2,2-二甲基-4H-环戊并-1,3-二氧代-4-酮

(+)-(3As,6as)-3a,6a-二氢-2,2-二甲基-4H-环戊并-1,3-二氧代-4-酮

(3aS,6S,6aS)-2,2,6-Trimethyl-6-p-tolyl-tetrahydro-cyclopenta[1,3]dioxol-4-one

(3S,4R)-4-Hydroxy-3-methyl-3-p-tolyl-cyclopentanone

(3aS,4R,6R,6aS)-2,2,4-Trimethyl-tetrahydro-cyclopenta[1,3]dioxole-4,6-diol