title: Conformation of histamine derivatives. 2. Molecular orbital calculations of preferred conformations in relation to dual receptor activity.
mesh_terms: D000818:Animals; D004305:Dose-Response Relationship, Drug; D006168:Guinea Pigs; D006325:Heart Atria / Q000187:drug effects; D006632:Histamine / Q000008:administration & dosage / Q000494:pharmacology; D007082:Ileum / Q000187:drug effects; D066298:In Vitro Techniques; D008968:Molecular Conformation; D011955:Receptors, Drug
chemical_list: D011955:Receptors, Drug; D006632:Histamine