ethyl (1S,2R)-(-)-2-hydroxycyclopentanecarboxylate

(1S)-trans-2-azidocyclopentanecarboxylic acid ethyl ester

N-(tert-butyloxycarbonyl)-trans-(1S,2S)-2-aminocyclopentanecarboxylic acid methyl ester

(+/-)-trans-4-oxo-1,2-cyclopentanedicarboxylic acid bis(methyl ester)