title: Preparation and properties of ryodipine, an effective antihypertensive agent.
abstract: A novel effective antihypertensive agent, 2,6-dimethyl-3,5-dimethoxycarbonyl-4-(o-difluoromethoxyphenyl++ +)-1,4-dihydropyridine (ryodipine, PP-1466) has been obtained. A method for ryosidine synthesis has been developed, side products of PP-1466 synthesis have been isolated and identified. Special characteristics (IRS, UVS, NMR, MS) and chromatography data (TLC, HPLC) are cited.
mesh_terms: D000959:Antihypertensive Agents / Q000138:chemical synthesis*; D055598:Chemical Phenomena; D002621:Chemistry; D002627:Chemistry, Physical; D002851:Chromatography, High Pressure Liquid; D002855:Chromatography, Thin Layer; D004355:Drug Stability; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D009543:Nifedipine / Q000031:analogs & derivatives* / Q000138:chemical synthesis; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet
chemical_list: D000959:Antihypertensive Agents; D009543:Nifedipine; C045912:ryodipine