title: Preparation of 1-(1,4,5,6-tetrahydro-1,2,4-triazinyl)phthalazine derivatives possessing antihypertensive properties.
mesh_terms: D000959:Antihypertensive Agents / Q000138:chemical synthesis*; D001794:Blood Pressure / Q000187:drug effects; D055598:Chemical Phenomena; D002621:Chemistry; D006801:Humans; D010793:Phthalazines / Q000138:chemical synthesis* / Q000494:pharmacology; D011724:Pyridazines / Q000138:chemical synthesis*; D014227:Triazines / Q000138:chemical synthesis* / Q000494:pharmacology
chemical_list: D000959:Antihypertensive Agents; D010793:Phthalazines; D011724:Pyridazines; D014227:Triazines