F Popowycz, S Routier, B Joseph, JY Mérour - Tetrahedron, 2007 - Elsevier
Contrary to indoles, the 7-azaindole (1H-pyrrolo [2, 3-b] pyridine) nucleus is present only in
a few natural products such as alkaloids from the variolin family. Nevertheless, 7-azaindole …