Abstract
3-Chloro-4-indolylmaleimides and two different alkynes are used as the starting materials in a novel and highly effective Pd-catalyzed addition/C–H activation/cyclization sequence for the synthesis of pyrrolo[3,4- c]carbazole-1,3(2 H,6 H)-diones. The desired products are obtained in moderate to excellent yields. Such compounds show a wide range of biological activities.
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