3-羟基-5-羰基-1-环戊烯-1-庚酸甲酯

methyl 7-[3-(oxan-2-yloxy)-5-oxocyclopenten-1-yl]heptanoate

8-(5-oxooxolan-2-yl)octanoic acid

9-甲酰基壬酸

5-氧代环戊-1-烯-1-庚酸