It can be prepared in several different ways: 1) By reaction of d-amphetamine (I) with ethyl N-p-toluenesulfonylcarbamate (II) in refluxing toluene (1). 2) By reaction of (I) with p-toluenesulfonyl isocyanate (III) in refluxing toluene (1). 3) By reaction of p-toluenesulfinyl chloride (IV) with 3-hydroxy-1-(d-alpha-methyl-phenethyl) urea (V) in refluxing petroleum ether (1). 4) By reaction of p-toluenesulfonyl chloride (VI) with N-(d-alpha-methylphenethyl)urea (VII) in refluxing petroleum ether (2).

It can be prepared in several different ways: 1) By reaction of d-amphetamine (I) with ethyl N-p-toluenesulfonylcarbamate (II) in refluxing toluene (1). 2) By reaction of (I) with p-toluenesulfonyl isocyanate (III) in refluxing toluene (1). 3) By reaction of p-toluenesulfinyl chloride (IV) with 3-hydroxy-1-(d-alpha-methyl-phenethyl) urea (V) in refluxing petroleum ether (1). 4) By reaction of p-toluenesulfonyl chloride (VI) with N-(d-alpha-methylphenethyl)urea (VII) in refluxing petroleum ether (2).

It can be prepared in several different ways: 1) By reaction of d-amphetamine (I) with ethyl N-p-toluenesulfonylcarbamate (II) in refluxing toluene (1). 2) By reaction of (I) with p-toluenesulfonyl isocyanate (III) in refluxing toluene (1). 3) By reaction of p-toluenesulfinyl chloride (IV) with 3-hydroxy-1-(d-alpha-methyl-phenethyl) urea (V) in refluxing petroleum ether (1). 4) By reaction of p-toluenesulfonyl chloride (VI) with N-(d-alpha-methylphenethyl)urea (VII) in refluxing petroleum ether (2).