<unk>  is a member of the 4-oxazolidinone class and is structurally related to other members of the class including aminorex, 4-methylaminorex, clominorex, cyclazodone, fenozolone, fluminorex, and thozalinone. The salts of<unk>  in use are<unk>  magnesium (free base conversion ratio .751),<unk>  iron (.578),<unk>  copper (.644),<unk>  nickel (.578),<unk>  rubidium,<unk>  calcium,<unk>  chromium, and chelates of the above which are identical in weight to the salt mentioned.<unk>  free base and<unk>  cobalt, strontium, silver, barium, lithium, sodium, potassium, zinc, manganese, and caesium are research chemicals which can be produced in situ for experiments. Others such as lanthanide<unk>  salts such as<unk>  cerium can be prepared;<unk>  beryllium would presumably be toxic. Synthesis<unk>  is synthesized by the condensation of racemic ethyl mandelate with guanidine.<unk>  synthesis:
Pemoline
Phenoxyethanol
Pyrovalerone
Complanine
Triprolidine
Tetryzoline
Temgicoluril
Dimethyl methylphosphonate