Заранее спасибо!
1.Roman S. Begunov Galina A. Ryzvanovich1, a and Ol’ga I. Nozdracheva1, a
Synthesis of pyrido[3’,2’:4,5]imidazo[1,2-a]pyridines by reductive cyclisation of pyridinium salts
Mendeleev Communications
Volume 16, Issue 2, 2006, Pages 119-120
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http://dx.doi.org/10.1070/MC2006v016n02ABEH002236
Cleavage of 7- and 8-nitropyrido[1,2-a]benzimidazoles on treatment with dimethyl acetylenedicarboxylate
Mendeleev Communications
Volume 15, Issue 3, 2005, Pages 127-128
Код: Выделить всё
http://dx.doi.org/10.1070/MC2005v015n03ABEH001955