(2R,3S)-3-(2-Hydroxy-ethylamino)-2-[4-(2-trifluoromethyl-benzyloxy)-benzenesulfonylamino]-butyric acid tert-butyl ester

(2R,3S)-4-Acetyl-3-methyl-1-[4-(2-trifluoromethyl-benzyloxy)-benzenesulfonyl]-piperazine-2-carboxylic acid tert-butyl ester

(2R,3R)-3-Methyl-1-[4-(2-trifluoromethyl-benzyloxy)-benzenesulfonyl]-aziridine-2-carboxylic acid tert-butyl ester

(2R,3S)-3-Methyl-1-[4-(2-trifluoromethyl-benzyloxy)-benzenesulfonyl]-piperazine-2-carboxylic acid tert-butyl ester

N-[(1R,2S)-2-Hydroxy-1-(4-methyl-2,6,7-trioxa-bicyclo[2.2.2]oct-1-yl)-propyl]-4-(2-trifluoromethyl-benzyloxy)-benzenesulfonamide