Maxime R. Vitale is a researcher at the French National Scientific Research Center (CNRS). Sylvain Oudeyer is a lecturer at the University of Rouen Normandy (Organocatalysis axis - heterocycles team). Vincent Levacher is head of the heterocycles team in the COBRA laboratory at the University of Rouen Normandy. Jean-François Brière is CNRS researcher in the COBRA laboratory at the University of Rouen Normandy (Organocatalysis axis - heterocycles team).