2-(3-Phenyl-2-methylpropylamino)-3'-hydroxy-acetophenone (65.4 g.) in methanol (400 ml) was hydrogenated over PtO2 (1.2 g.) at 45 deg.C and 2 atmos. in a rocking hydrogenator for 2 hrs. The catalyst was filtered off, washed with methanol and the combined filtrates were evap. ...