Substituted phenylmorpholines CompoundStructure Substituted amphetaminesSubstituted morpholinesSubstituted phenylmorpholines Phenmetrazine Pseudophenmetrazine 2-Phenyl-3,5-dimethylmorpholine (3,5-DMPM) 2-Phenyl-3,6-dimethylmorpholine (3,6-DMPM) 4-Methylphenmetrazine (4-MPM) Fenmetramide Phendimetrazine Phenetrazine Phenmetetrazine 3-Chlorophenmetrazine (3-CPM) Naphthylmorpholine (PAL-678) 3,4-Methylenedioxyphenmetrazine (MDPM) Naphthylmetrazine (PAL-704) Radafaxine 2-(4-Bromo-2,5-dimethoxyphenyl)morpholine (2C-B-morpholine) Fenbutrazate