(2R,6S)-2,6-dimethyl-4-(2-methyl-3-(4-(tert-pentyl)phenyl)propyl)morpholine hydrochloride; (2R,6S)-2,6-dimethyl-4-(2-methyl-3-(4-(tert-pentyl)phenyl)propyl)morpholine hydrochloride;(2R,6S)-2,6-dimethyl-4-(2-methyl-3-(4-tert-pentylphenyl)propyl)morpholine hydrochloride;(2S,6R)-2,6-dimethyl-4-(2-methyl-3-(4-tert-pentylphenyl)propyl)morpholine hydrochloride;(2R,6S)-2,6-dimethyl-4-{2-methyl-3-[4-(2-methylbutan-2-yl)phenyl]propyl}morpholine hydrochloride;(2R,6S)-rel-4-[3-[4-(1,1-Dimethylpropyl)phenyl]-2-methylpropyl]-2,6-dimethyl-morpholine hydrochloride;(2S,6R)-2,6-dimethyl-4-[2-methyl-3-[4-(2-methylbutan-2-yl)phenyl]propyl]morpholine;hydrochloride