Abstract
The indole-oxazole scaffold is found in a range of biologically active natural products, including the breitfussin family. Divergent methods that provide access to the indole-oxazole template are relatively scarce, which impedes the wider exploration of these natural products and their exciting biological activity. Herein, we describe a highly divergent synthesis of the indole-oxazole scaffold via a one-pot Friedel-Crafts/Robinson-Gabriel synthesis and the application of this methodology to the synthesis of breitfussins C, G, and H.
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