Two different approaches to preparing a series of potent PKC inhibitors, represented by 11, are delineated, namely, (a) reaction of indolocarbazole derivatives with appropriate 3-atom synthons followed by hydrolysis and/or hydrolysis/reduction or (b) treatment of 2-TIPS Arcyriaflavin A 10 with appropriate 3-atom synthons proceeded by N-Si bond cleavage.