(S)-(+)-2-ethoxy-4-[N-[1-(2-piperidino-phenyl)-3-methyl-1-butyl]amino-carbonylmethyl]benzoic acid

ethyl 2-ethoxy-4-[2-[[3-methyl-1-[2-(1-piperidinyl)phenyl]butyl]amino]-2-oxoethyl]-benzoate

1-(2-hydroxy-phenyl)-3-piperidin-1-yl-propenone

Nα-(2-Naphthylsulfonylglycyl)-4-nitro-phenylalaninpiperidid

(+/-)-1-methyl-2-piperidinoethyl acetate