Thymidine is a water-soluble pyrimidine deoxynucleoside and potent thymidine kinase substrate. Thymidine is known to be converted to dTTP and utilized for DNA synthesis. It is also known that thymidine is converted by catabolic enzymes to several end products. Excess thymidine results in high levels of dTTP, which exerts a regulatory feedback inhibition in the nucleotide biosynthesis pathways leading to DNA synthesis. This property of thymidine is used when it is given in high doses to patients with solid tumors. Thymidine is being tested in Phase II of clinical trials for the treatment of cancer and 5'-Nucleotidase Syndrome.

Acetophenone is an organic compound with major use in the chemical industry for the polymerization of olefins, and organic synthesis as a photosensitizer and as a specialty solvent for plastics and resins. It is also a chemical intermediate for the odorant ethyl methyl phenylglycidate, the riot control agent 2-chloroacetophenone and 2- bromoacetophenone for dyes. It is used in the manufacture of pharmaceuticals, rubber, dyes, and corrosion inhibitors. Acetophenone was approved by the FDA as a flavoring substance and adjuvant in food. It is used as a flavoring agent in non-alcoholic beverages, ice cream, candy, baked goods, gelatins, puddings, tobacco, and chewing gum. It is used to impart an orange-blossom fragrance in soaps, detergents, creams, lotions, and perfumes.

Clothiapine is a neuroleptic of dibenzoepine class that ise used for the treatment of mental disorders. It is supposed that clothiapine acts by blocking GABA (A) receptors. The drug is marketed in some European countries under the name Entumin.