ethyl 7-(1-benzyloxycarbonyl-4-piperidyl)-2-oxoheptanoate

tert-butyl N--L-alanyl>-N-(2-indanyl)glycinate

ethyl 6-(1-benzyloxycarbonyl-4-piperidyl)-2-chlorohexanoate

(2S,3aS,7aS)-1-[(S)-2-((R)-1-Carboxy-5-piperidin-4-yl-pentylamino)-propionyl]-octahydro-indole-2-carboxylic acid