3,4-Fused tricyclic indole scaffolds are ubiquitous in bioactive natural products and pharmaceuticals. A new protocol for the synthesis of 3,4-fused tricyclic indoles has been developed through cascade carbopalladation and C–H amination with N,N-di-tert-butyldiaziridinone. The protocol allows access to a range of 3,4-fused tricyclic indoles, including those containing various linkers and fused with medium-sized rings. Rucaparib can be synthesized via this reaction, providing an advantageous synthetic method for the FDA-approved cancer medicine.

中文翻译：

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通过级联碳钯和CH胺化反应合成3,4-稠合的三环吲哚：Rucaparib的开发和全合成。

3,4-融合的三环吲哚支架在生物活性天然产物和药物中普遍存在。通过级联碳氢键合和N，N-二叔丁基二氮杂吡啶酮的CH-H胺化反应，已开发出一种新的3,4-稠合三环吲哚合成方法。该协议允许访问一系列3,4-稠合的三环吲哚，包括那些包含各种接头并与中等大小的环稠合的吲哚。Rucaparib可以通过该反应合成，为FDA批准的癌症药物提供了一种有利的合成方法。