Substituted pyridines Substituted pyridines are a class of compounds derived of the pyridine base structure. List of substituted pyridines CompoundStructure Substituted morpholinesSubstituted piperazinesSubstituted piperidinesSubstituted pyridinesSubstituted pyrrolidinesSubstituted tetrahydropyridinesSubstituted imidazopyridinesSubstituted pyridodiazepines Pyridine 2,3'-Bipyridine Pyridoxine Nikethamide Paraquat Anpirtoline Phenatine Nicotinamide mononucleotide (NMN) See also Anodyne