Original synthesis of 2-substituted-4,11-dimethoxy-1-(phenylsulfonyl)-2,3-dihydro-1H-naphtho[2 ,3-f]indole-5,10-diones using TDAE and Cu-catalyzed reaction strategy
Omar Khoumeri, Gamal Giuglio-Tonolo, Maxime D. Crozet, Thierry Terme, Patrice Vanelle,
Tetrahedron, 67 6173-6180 (2011)