4-({(2R,5S)-2,5-dimethyl-4-[(2R)-3,3,3-trifluoro-2-hydroxy-2-methylpropanoyl]piperazin-1-yl}carbonyl)benzonitrile
4-({(2r,5s)-2,5-dimethyl-4-[(2r)-3,3,3-trifluoro-2-hydroxy-2-methylpropanoyl]piperazin-1-yl}carbonyl)benzonitrile