3-环戊基丙酸

7-羟基-2,3-二氢-1H-环戊并[c]苯并吡喃-4-酮

1-methyl-2-oxocyclopentane-1-carbonitrile

2-hydroxy-1-methylcyclopentane-1-carbonitrile

1-[2-(1,3-dioxolan-2-yl)ethyl]-2-oxocyclopentane-1-carbonitrile