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10.24.5 Pyridazino[1,6-a]indoles and Related Benzo-Fused Ring Systems

DOI: 10.1055/sos-SD-110-02114

Harris, P. A.Science of Synthesis Knowledge Updates, (20213181.

General Introduction

The synthesis and chemistry of pyridazino[1,6-a]indoles as a subclass will be reviewed in this section. Because there are only limited examples of the core tricycle pyridazino[1,6-a]indole (1), the related ring systems of indolo[1,2-b]cinnoline (2) and indolo[2,1-a]phthalazine (3), which are benzo-fused at the pyrazine ring, are also included in this chapter. To avoid confusion, the ring numbering system used in chapter subheadings will follow that of the core pyridazino[1,6-a]indole (1) tricycle, as illustrated in Scheme 1.

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