Cyano-, Nitrile-

Applications Cyanomelamine is an substituted Melamine (M208700), an compound that forms synthetic resins with formaldehyde.
References LaBrecque, G.C., et al.: J. Econ. Entomol., 61, 1621 (1968);

Applications Ethyl Cyano(hydroxyimino)acetate is used in peptide synthesis and has shown to suppress racemiztion, has high coupling efficiency in both solution and solid phase synthesis and is a non-explosive alternative to 1-hydroxybenzotriazole (HOBt) and 1-hydroxy-7-azabenzotriazole (HOAt).
References Khattab, S.N.: Bull. Chem. Soc. Jpn., 83, 1374 (2010)

Stability Hygroscopic
Applications 2-(2-Cyanophenyl)-1,3,2-dioxaborinane is used in the synthesis of AMPA receptor antagonists in the treatment of neurological diseases causing dysfunction of glutamatergic neurotransmission. Also used in the small scale synthesis of Perampanel (P285520), an AMPA receptor antagonist.
References Hibi, S. et al.: J. Med. Chem., 55, 10584 (2012); McElhinny, C. et al.: Synthesis, 44, 57 (2012);

Applications 1-Cyanotetraline is used in the synthesis of aldose reductase inhibitors. Also reductase enzymes are believed to catalyze the formation of sorbitol from glucose leading to the chronic complications of diabetes mellitus. It is also used in the synthesis of baclofen analogs, potent GABAB agonists.
References Sarges, R. et al.: J. Med. Chem., 31, 230 (1988); Mann, A. et al.: J. Med. Chem., 34, 1307 (1991);