Synthesis of 3-Substituted 2-Aminopyridines via Displacement of 3-Fluoro-2-nitropyridine
摘要:
An efficient method for the substitution of 3-fluoro-2-nitropyridine with a range of nitrogen-containing heterocycles and aliphatic amines is described. The reaction proceeds in a regioselective manner at moderate temperature and in reasonable yield.
This invention relates to compounds of formula (I), a process for their preparation, pharmaceutical compositions containing them and their use in the treatment of conditions having an association with the orexin sub-type 1 receptor. Ar1 and Ar2 have meanings given in the description.