(-)-6beta-羟甲基-7alpha-羟基-顺式-2-氧杂双环[3.3.0]辛-3-酮

科立内酯

(R)-methyl 2-(3-acetoxy-5-oxocyclopent-1-en-1-yl)acetate

methyl 2-[(3R)-3-hydroxy-5-oxocyclopenten-1-yl]acetate

(-)-3β-hydroxy-1β-methoxycarbonylmethylcyclopent-1-en-5-one