(2S,6R)-4-[3-(4-tert-butylphenyl)-2-methylpropyl]-2,6-dimethylmorpholine; (2RS,6SR)-2,6-Dimethyl-4-[(2RS)-3-[4-(tert-butyl)phenyl]-2-methylpropyl]morpholine; 4-[3-(4-tert-Butylphenyl)-2-methylpropyl]-2,6-dimethylmorpholine