Oxametacin (1-p-chlorobenzoyl-2-methyl-5-methoxy-3-indolylacethydroxamic acid) is a non-steroidal anti-inflammatory compound that exerts analgesic, antipyretic and anti-inflammatory properties. This drug has been claimed to be effective in the treatment of acute attacks of gout. In the antiproliferative test, oxametacin exhibited leukemic cell lines selectivity against the solid tumor cell lines. Oxametacin also exhibited inhibitory activity toward histone deacetylases and thus could be used as a lead compound in the further development of histone deacetylase inhibitors for anticancer therapy.

Adrafinil (CRL 40028) was synthesized by Louis Lafon Laboratories. The proprietary name of adrafinil is Olmifon®; its chemical name is (diphenylmethyl )sulfinyl-2-acetohydroxamic acid. Adrafinil is metabolized to modafinil. Adrafinil and modafinil both serve as α1-adrenergic–receptor agonists. The evidence in support of this hypothesis, however, is weak, and other mechanisms of action are probable. Adrafinil may modify the intracerebral release of amino acids (both GABA and glutamate) and adrafinil may increase cerebral metabolism. Olmifon ® tablets, 300 mg (adrafinil) were indicated for the treatment of disorders of vigilance, attention, and ideo-motor slowing in the elderly. It has been marketed in France since September 19, 1985. Cephalon announced their intent to stop marketing the drug, and has discontinued production and marketing of Olmifon in September 2011. Adrafinil is marketing as nootropic supplement to improve cognitive functions.