Abstract

AbstractA concise total synthesis to generate synthetically challenging steroids scaffolds is reported utilizing palladium-catalyzed dearomatization cyclization for the key cyclization step, enabling the divergent synthesis of 6,6,6,5-tetracyclic steroids cores through both ligand and reaction condition control. We have started from the simple starting materials 2,4,6-trihydroxybenzoic acid and 2-methylcyclopentane-1,3-dione to selectively generate complex steroid scaffolds in a 12-step operation.

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