SEARCH Articles Figures Tables 2-Aminopyridine 2-Aminopyridine, reaction with 4- pyrimidine, reaction with Acidic-basic Acidities and Basicities Acidity and basicity Acidity/basicity Acids Diones Aminopyridines basicity Basic reactions Basicity pyrimidine Pyrimidin-2,4-dione Pyrimidine acids with Pyrimidine diones Pyrimidine-2,6-dione Pyrimidines reactions