Substituted pyridines CompoundStructure Substituted morpholinesSubstituted piperazinesSubstituted piperidinesSubstituted pyridinesSubstituted pyrrolidinesSubstituted tetrahydropyridinesSubstituted imidazopyridinesSubstituted pyridodiazepines Pyridine Anpirtoline Phenatine Nicotinamide mononucleotide (NMN)