A cascade synthetic route to new bioactive spiroindolinepyrido[1,2-a]indolediones from indirubin
The allylation of indirubin produced the expected indolic N′-allylindirubin and N,N′-diallylindirubin derivatives in moderate yields, together with the corresponding N-substituted isatin products. At higher temperatures, the base-initiated reaction with a
Sele, Alexander M.,Bremner, John B.,Willis, Anthony C.,Haritakun, Rachada,Griffith, Renate,Keller, Paul A.