86347-14-0 = 86347-15-1 反应条件:1.1 Solvents: Acetone; Rt -> -10 °C1.2 Reagents: Hydrochloric Acid Solvents: Water; Ph 2 - 3,Rt 标题:Commercially Viable Synthesis Of Medetomidine Using A Classical Approach To The Imidazole Ring Formation 作者:Orekhov,Dmitry 参考文献:Organic Process Research & Development 日期:2022 卷标:26(11) 页码:3166-3178]
127-08-2 + 64394-33-8 = 86347-15-1 反应条件:1.1 Reagents: Bromine Solvents: Methanol; Rt -> -10 °C; -5 °C -> -6 °C; 30 - 35 S,-6 °C -> -9 °C; -5 °C -> -6 °C; 18 H,-6 °C; 10 Min,1 °C; 1 °C -> 0 °C; 2.5 - 3 H,0 °C; 30 Min,0.5 °C1.2 Solvents: Acetonitrile; 21 °C; 19 H,21 °C2.1 Reagents: Cupric Acetate,Ammonia Solvents: 1-Propanol,Water; 3 Min,Rt2.2 Solvents: Water; 2 H,100 °C; 10 - 15 Min,100 °C; 2 H,100 °C; 1 H,16 °C -> 18 °C; 30 Min,18 °C2.3 Reagents: Pentasodium Pentetate Solvents: Ethyl Acetate,Water; 24 H,23 °C2.4 Reagents: Ammonia Solvents: Water; Neutralized,8 °C -> 10 °C2.5 Solvents: Acetone; Rt -> -10 °C2.6 Reagents: Hydrochloric Acid Solvents: Water; Ph 2 - 3,Rt 标题:Commercially Viable Synthesis Of Medetomidine Using A Classical Approach To The Imidazole Ring Formation 作者:Orekhov,Dmitry 参考文献:Organic Process Research & Development 日期:2022 卷标:26(11) 页码:3166-3178]
35791-94-7 + 134640-85-0 = 86347-15-1 反应条件:1.1 Reagents: N,N,N′,N′-Tetramethylethylenediamine Catalysts: Tris(Acetylacetonato)Cobalt Solvents: Tetrahydrofuran; 0 °C -> -1 °C; 180 Min,-1 °C; -1 °C -> 20 °C; 1 H,20 °C1.2 Reagents: Hydrochloric Acid Solvents: Water; 20 °C; 40 Min,20 °C1.3 Reagents: 2,2′,3,3′-Tetramethyl-1,1′-Biphenyl Solvents: Methanol; 1 H,-18 °C2.1 Reagents: Bromine Solvents: Methanol; Rt -> -10 °C; -5 °C -> -6 °C; 30 - 35 S,-6 °C -> -9 °C; -5 °C -> -6 °C; 18 H,-6 °C; 10 Min,1 °C; 1 °C -> 0 °C; 2.5 - 3 H,0 °C; 30 Min,0.5 °C2.2 Solvents: Acetonitrile; 21 °C; 19 H,21 °C3.1 Reagents: Cupric Acetate,Ammonia Solvents: 1-Propanol,Water; 3 Min,Rt3.2 Solvents: Water; 2 H,100 °C; 10 - 15 Min,100 °C; 2 H,100 °C; 1 H,16 °C -> 18 °C; 30 Min,18 °C 标题:Commercially Viable Synthesis Of Medetomidine Using A Classical Approach To The Imidazole Ring Formation 作者:Orekhov,Dmitry 参考文献:Organic Process Research & Development 日期:2022 卷标:26(11) 页码:3166-3178]
5-[1-(2,3-二甲基苯基)乙烯基]-1H-咪唑置于5%-Palladium/activated Carbon 氢气,盐酸体系中,用 甲醇,水 作为反应溶剂,-10.0~46.0 °C,210.0 Kpa 条件下,反应 4.5H,以89%的收率获得产物盐酸美托咪啶 参考文献:Method For Preparing Medetomidine And Its Salts 标题:Method For Preparing Medetomidine And Its Salts 摘要:这项发明提供了一种改进的,高效的制备美托咪定及其盐的方法,特别是其药用可接受盐.该方法利用卤代咪唑对格氏试剂的转金属化高反应性,以及随后与2,3-二甲基苯甲醛反应的特点.
专利号:US-10053420-B2 优先权日:2015-01-30 标 题 :Processes for the preparation of compounds, such as 3-arylbutanals, useful in the synthesis of medetomidine 发明人:EKLUND LARS; EEK MARGUS; EKAMBARAM RAMESH; MAASALU ANTS 权利人:CAMBREX KARLSKOGA AB 摘要:There is provided a process for the preparation of a compound of formula (I) as defined herein, wherein said process comprises reacting a compound of formula (II) as defined s herein with one or more suitable Vilsmeier reagent.
专利号:US-6806291-B1 优先权日:2003-10-09 标 题:Analgesic compounds, their synthesis and pharmaceutical compositions containing them 发明人:SUNKEL CARLOS; ALVAREZ-BUILLA JULIO; BAZAN NICOLAS G; VACCARINO ANTHONY 权利人:FOUNDATION FOR THE LSU HEALTH 摘要:New analgesic compounds, which are prepared by the hydrolysis of N-acylated 4-hydroxyphenylamine derivatives, their synthesis and pharmaceutical compositions containing them are disclosed. These compounds surprisingly possess high analgesic activity with little hepatotoxic effect, making them more useful than conventional non-steroidal anti-inflammatory drugs (NSAIDs) in the treatment of chronic pain.
专利号:CN-107428648-B 优先权日:2015-01-30 标 题:Process for the preparation of compounds such as 3-arylbutanal useful in the synthesis of medetomidine
专利号:CN-107428648-A 优先权日:2015-01-30 标题 :Process for the preparation of compounds such as 3-arylbutyraldehyde useful in the synthesis of medetomidine
专利号:US-2018009744-A1 优先权日:2015-01-30 标题:Processes for the preparation of compounds, such as 3-arylbutanals, useful in the synthesis of medetomidine
专利号:CN-113800999-A 优先权日:2021-10-18 标题 :A kind of dexmedetomidine hydrochloride impurity and its synthesis method and application
1: Murrell JC, Hellebrekers LJ. Medetomidine and dexmedetomidine: a review of cardiovascular effects and antinociceptive properties in the dog. Vet Anaesth Analg. 2005 May;32(3):117-27. Review. Review. 3: Cullen LK. Medetomidine sedation in dogs and cats: a review of its pharmacology, antagonism and dose. Br Vet J. 1996 Sep;152(5):519-35. Review. Review. Review. German. Review. Review. Review. Review. Review.
合成参考文献
参考文献:10.1007/s11259-011-9492-8 摘要:Schwarz C, Leicht U, Drosse I, Ulrich V, Luibl V, Schieker M, Röcken M. Characterization of adipose-derived equine and canine mesenchymal stem cells after incubation in agarose-hydrogel. Veterinary Research Communications. 2011 Jul 15;35(8):487–99. doi: 10.1007/s11259-011-9492-8.