1. See, for example:
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3. Chem. Abstr. 2005, 143, 133291];
4. Construction of Pyrrolo[3,2-c]quinolines – Recent Advances in the Synthesis of the Martinelline Alkaloids
5. K. Hanada, K. Furuya, K. Inoguchi, M. Miyakawa, N. Nagata (Kaken Pharma Co Ltd, PCT Int. Appl.), WO 01027086, 2001,; [