Synthesis of Novel Functionalized Derivatives of 5-Nitro-3,4-dihydropyrimidin-2(1H)-one by the Cyclocondensation of 1-Chlorobenzyl Isocyanates with N,S- and N,N-Nitroketeneacetals - Sukach, Volodymyr A; Bol’but, Andriy V; Petin, Alexander Yu; Vovk, Mykhaylo V (Synthesis, 2007)