Synonyms: Benzonitrile, 4-[(6,7-dihydro-7-hydroxy-5H-cyclopentapyrimidin-4-yl)amino]-, 4-[(6,7-Dihydro-7-hydroxy-5H-cyclopentapyrimidin-4-yl)amino]benzonitrile; 5H-Cyclopentapyrimidine, benzonitrile deriv.; 4-(4-Cyanoanilino)-6,7-dihydro-7-hydroxy-5H-cyclopenta[d]pyrimidine; RS 8359