ChemInform Abstract: A CONVENIENT SYNTHESIS OF N‐ARYL‐1,2‐DIHYDRO‐2‐OXO‐3‐PYRIDINECARBOXAMIDES, N‐ARYL‐N‐METHYL‐1,2‐DIHYDRO‐2‐OXO‐3‐PYRIDINECARBOXAMIDES AND THEIR 1‐METHYL (O‐METHYL)‐DERIVATIVES | Publicación