[1-[(2R,6S)-1-(4-chlorophenyl)sulfonyl-6-(3,5-difluorophenyl)piperidin-2-yl]cyclopropyl] 4-(2-hydroxyethyl)piperazine-1-carboxylate [1-[(2R,6S)-1-(4-chlorophenyl)sulfonyl-6-(3,5-difluorophenyl)-2-piperidyl]cyclopropyl] 4-(2-hydroxyethyl)piperazine-1-carboxylate 4-(2-hydroxyethyl)-1-piperazinecarboxylic acid [1-[(2R,6S)-1-(4-chlorophenyl)sulfonyl-6-(3,5-difluorophenyl)-2-piperidinyl]cyclopropyl] ester 4-(2-hydroxyethyl)piperazine-1-carboxylic acid [1-[(2R,6S)-1-(4-chlorophenyl)sulfonyl-6-(3,5-difluorophenyl)-2-piperidyl]cyclopropyl] ester