The First Synthesis of Novel 7-Oxo-7H-pyrrolo[3,2-d]pyrimidine 5-Oxides from 1-(5-Nitro-6-pyrimidinyl)-2-arylacetylenes - Susvilo, Inga; Brukstus, Algirdas; Tumkevicius, Sigitas (Synlett, 2003)