title: 8-azatheophylline and its derivatives as coronary vasodilators.
mesh_terms: D000818:Animals; D001794:Blood Pressure / Q000187:drug effects; D004285:Dogs; D006339:Heart Rate / Q000187:drug effects; D010313:Partial Pressure; D010879:Piperazines / Q000494:pharmacology; D013806:Theophylline; D014665:Vasodilator Agents / Q000138:chemical synthesis / Q000494:pharmacology; D014970:Xanthines / Q000138:chemical synthesis / Q000494:pharmacology
chemical_list: D010879:Piperazines; D014665:Vasodilator Agents; D014970:Xanthines; D013806:Theophylline