Process for the preparation of acids 2 - carbamoyl - nicotinico and 3 - quirolino - carboxilicos, replaced or not, and a process for preparing a acid, 2 - (4),4 - dissubstituido - 5 - oxo (or tiono) - 2 - imidazolin - 2 - YL) - nicotinico and acids 3 - quinolino - carboxilicos

摘要

The invention provides an improved process for the preparation of substituted and unsubstituted 2-carbamoyl nicotinic and 3-quinolinecarboxylic acids.