1) Yu-wei Ren, Xuerui Wang, Weixia Wang, Bing Li, Zong-jun Shi and Wei Zhang. Photochemical and thermal cyclizations of 4-(2-azidophenyl)-3,4-dihydropyrimidin-2-ones for the synthesis of 4-methylenepyrimidino[5,4-b]indol-2-ones. Tetrahedron Letters, 2011, Vol. 52, № 2, pp. 192-195.
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http://dx.doi.org/10.1016/j.tetlet.2010.10.176Код: Выделить всё
http://dx.doi.org/10.1021/ja00228a016