title: 1,6-Diammonium-2,4-hexadiyne analogs of hexamethonium.
mesh_terms: D000109:Acetylcholine / Q000494:pharmacology; D000480:Alkynes / Q000138:chemical synthesis / Q000494:pharmacology; D000818:Animals; D004305:Dose-Response Relationship, Drug; D006168:Guinea Pigs; D006584:Hexamethonium Compounds / Q000138:chemical synthesis* / Q000494:pharmacology; D007082:Ileum / Q000187:drug effects; D066298:In Vitro Techniques; D009119:Muscle Contraction / Q000187:drug effects; D009538:Nicotine / Q000037:antagonists & inhibitors / Q000494:pharmacology; D000644:Quaternary Ammonium Compounds / Q000138:chemical synthesis / Q000494:pharmacology; D011950:Receptors, Cholinergic / Q000187:drug effects; D013329:Structure-Activity Relationship
chemical_list: D000480:Alkynes; D006584:Hexamethonium Compounds; D000644:Quaternary Ammonium Compounds; D011950:Receptors, Cholinergic; D009538:Nicotine; D000109:Acetylcholine