1. Davis PD, et al. Inhibitors of protein kinase C. 1. 2,3-Bisarylmaleimides. J Med Chem. 1992 Jan;35(1):177-84. 2. Slater MJ, et al. Indolocarbazoles: potent, selective inhibitors of human cytomegalovirus replication. Bioorg Med Chem. 1999 Jun;7(6):1067-74.