Jan-Feb 1999 Synthesis of 4-Oxopyrimidinium and 4-Oxo-l,4-dihydropyrimidines Irina V. Vedernikova and Achiel Haemers Department of Pharmaceutical Chemistry, University of Antwerp (UIA), Universiteitsplein, 1, 2610, Antwerp, Belgium Yuryi I. Ryabukhin Department of Organic and Physical Chemistry, University of Rostov/Don, Zorge, 105, Rostov/Don, 344113 Russia Received August 28, 1998 97 The synthesis of N1 -substituted 4-pyrimidones is described. These ...