Heterocyclic carboxamide-containing thiourea inhibitors of herpes viruses containing substituted phenylenediamine group

Compounds of formula (I) wherein R1-R5 are independently selected from hydrogen, or substituents R9-R12 are independently hydrogen, or substituents provided that at least one of R9-12 is not hydrogen; G is a monocyclic heteroaryl: X is a bond, -NH, alkyl of 1 to 6 carbon atoms, alkenyl of 1 to 6 carbon atoms, alkoxy of 1 to 6 carbon atoms, or thioalkyl of 1 to 6 carbon atoms, alkylamino of 1 to 6 carbon atoms, or (CH)J; J is alkyl of 1 to 6 carbon atoms, cycloalkyl of 3 to 7 carbon atoms, phenyl or benzyl, useful in the treatment of diseases associated with herpes viruses including human cytomegalovirus, herpes simplex viruses, Epstein-Barr virus, varicella-zoster virus, human herpesviruses-6 and -7, and Kaposi herpesvirus.