Chemistry of lteterocyclic Compmmds. Vol. .16. No. 2, 2(1(1(I ... PM Kochergm, EV Aleksandrova', VS Korsunskn, and VS Shlikhunova' ... We have synthesized a series o[" novel 2-amim)-6- with l-alkyl( l,2-dialkyl)-5-chh)ro-4-nitro-, 2-alkyl 4-chloro-5-nitroimidazoles. ... 'nitroimidazolyl)thiop,rines by reaction of thioguanine 1,2-dialk3'l)-5-hromo-4-nitro-. and 1-alkyl(1,2-dialkyl)- ... The reaction of thioguanine [11 and its nucleoside 12] with ...