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 Anpirtoline Phenatine Nicotinamide mononucleotide (NMN) See also Anodyne