e.g. Filippa Pettersson or Cancer Res. 75(6) , 1102-12, (2015) or 10.1002/anie.201600521
Tetrahedron
Synthesis of annelated [a] aza-anthracenones and thieno [3, 2-g] aza-naphthalenones through ring transformation of 2H-pyran-2-one followed by photocyclization
A concise synthesis of some new classes of heterocycles (4-aryl-11-oxo-1, 2, 3, 11- tetrahydro-1, 3a-diaza-cyclopenta [a] anthracen-6-carbonitriles and 5-aryl-12-oxo-1, 3, 4, 12- tetrahydro-2H-1, 4a-diazabenzo [a] anthracene-7-carbonitriles) has been developed by the ring transformation of suitably functionalized 2H-pyran-2-one with α-oxoketene cyclic aminals to intermediates (8-aroyl-5-aryl-2, 3-dihydro-1H-imidazo [1, 2-a] pyridine-7- ...