(1R,5S,1'S)-5-(1',2'-Dihydroxyethyl)cyclopent-2-en-1-ol

(1R,2R)-1,2-二羟基-3-环丙烯-5-酮1,2-环己基缩酮

(1S,2S,3R,4R)-4-(tert-butoxymethyl)-2,3-(cyclohexylidenedioxy)cyclopentan-1-ol

(2R,3R,4R)-4-(tert-butoxymethyl)-2,3-(cyclohexylidenedioxy)-1-cyclopentanone

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