Fodor Lajos; Csomós Péter; Csámpai Antal; Sohár Pál: Novel indole syntheses by ring transformation of β-lactam-condensed 1,3-benzothiazines into indolo[2,3-b][1,4]benzothiazepines and indolo[3,2-c]isoquinolines.
Tetrahedron, 68 (3). pp. 851-856. ISSN 0040-4020 (2012)