The synthesis of 4-aryl-1H-pyrazolo[3,4-b]quinolines by cyclization of 4-arylidenepyrazolin-5-ones with anilines - Chaczatrian, Karen; Chaczatrian, Gohar; Danel, Andrzej; Tomasik, Piotr (ARKIVOC, 2001)
doi: 10.3998/ark.5550190.0002.605