(S)-3-[(benzyloxy)methyl]morpholine hydrochloride: a nonstimulant appetite suppressant without conventional neurotransmitter releasing properties.

The synthesis and appetite-suppressant activity of (S)-3-[(benzyloxy)methyl]morpholine hydrochloride in dogs are reported. The oral ED50 for appetite suppression in dogs of 3 was 12 mg/kg, and it was tolerated up to 200 mg/kg. 3 had no inhibitory effect on the release or uptake of noradrenaline, dopamine, or serotonin at 10(-5) M. The (R) enantiomer of 3 was not anorexiant.