1 LLD 2-(pyridin-3-ylcarbonylamino)ethyl (2~{S})-1-(phenylmethyl)sulfonylpiperidine-2-carboxylate 1.000 2 8ZV 2-{[3,5-bis(2-methoxyethoxy)benzene-1-carbonyl]amino}ethyl (2s)-1-(benzylsulfonyl)piperidine-2-carboxylate 0.707 3 854 Ethyl (2s)-1-(benzylsulfonyl)piperidine-2-carboxylate 0.700