The present invention provides synthesis, pharmaceutically acceptable formulations and uses of compounds in accordance with Formula (I), or a stereoisomer, a tautomer or a pharmaceutically acceptable salt thereof. (formula I) For Formula (I) compounds R1, R2, R3, Ar and Z are as defined in the specification. The inventive Formula (I) compounds are inhibitors of CK2 and find utility in any number of therapeutic applications, including but not limited to treatment of proliferative disorders such as cancer, inflammation and immunological disorders.
