医药中间体。
医药中间体
合成路线 1(1. 合成:1207-69-8)
产率:89%
合成条件:for 12 h; Reflux; Inert atmosphere
实验步骤:将磁力搅拌的9-吖啶酮(4.01g,21mmol)的磷酰氯(105mL,1.13mol)溶液回流12小时。 将溶液冷却至室温,缓慢加入到破碎的冰(650g)中,并用浓氢氧化铵使其呈弱碱性。 通过过滤收集淡褐色固体,用水洗涤,并空气干燥24小时。 快速色谱(硅胶/ 75%己烷,20%THF,5%三乙胺)得到3.97g(89%收率)10,为细黄色针状物,与通过TLC,mp和光谱数据判断的方法A制备的材料相同。
参考文献:
- [1] Pharmaceutical Sciences, 1997, vol. 3, # 5-6, p. 235 - 239 [2] European Journal of Inorganic Chemistry, 1999, # 3, p. 557 - 563 [3] Heterocycles, 2014, vol. 88, # 1, p. 535 - 546 [4] Patent: CN108640873, 2018, A. Location in patent: Paragraph 0022; 0023 [5] Chemical Biology and Drug Design, 2017, vol. 90, # 5, p. 926 - 935 [6] Justus Liebigs Annalen der Chemie, 1893, vol. 276, p. 48 [7] Organic Syntheses, 1942, vol. 22, p. 5 [8] Chemische Berichte, 1900, vol. 33, p. 3770 [9] Patent: CN103755634, 2016, B. Location in patent: Paragraph 0040 [10] Patent: WO2008/10984, 2008, A2. Location in patent: Page/Page column 22
合成路线 2(2. 合成:1207-69-8)
产率:84%
合成条件:for 12 h; Reflux; Inert atmosphere
实验步骤:将磁力搅拌的N-苯基邻氨基苯甲酸(5.45g,26mmol)的磷酰氯(100mL,1.07mol)溶液用浓硫酸(0.5mL)处理,然后回流12小时。将溶液冷却至室温,缓慢加入到破碎的冰(650g)中,并用浓氢氧化铵使其呈弱碱性。通过过滤收集淡褐色固体,用水洗涤,并空气干燥24小时。快速色谱法(硅胶/ 75%己烷,20%THF,5%三乙胺)得到4.67g(84%收率)10,为细黄色针状物,通过TLC显示一个中等Rf点;熔点117-119℃(lit.15 mp 119-120℃); 1 H NMR(CDCl 3):8.50-8.10(m,4H),7.95-7.50(m,4H); IR(THF):3075,1622,1562,1438,1404,1324,1287,1014,831,767,647,608cm -1; Vis(CHCl3):λmax(“)360.5nm(10,000); MS EI:m / e(相对强度)215(33,M ++ 2),213(100,M +),178(21),177(16)分析计算值C 13 H 8 ClN:C,73.07; H,3.77; N,6.55; Cl,16.59;实测值:C,72.99; H,3.80; N,6.55; Cl,16.58。
参考文献:
- [1] Journal of Physical Organic Chemistry, 2010, vol. 23, # 4, p. 382 - 389 [2] Journal of the American Chemical Society, 2010, vol. 132, # 40, p. 14006 - 14008 [3] Journal of Heterocyclic Chemistry, 1987, vol. 24, # 5, p. 1405 - 1408 [4] Heterocycles, 2014, vol. 88, # 1, p. 535 - 546 [5] Journal of Heterocyclic Chemistry, 2012, vol. 49, # 4, p. 748 - 754 [6] Bioorganic and Medicinal Chemistry, 2016, vol. 24, # 4, p. 877 - 885 [7] Electrochimica Acta, 2010, vol. 55, # 9, p. 3348 - 3354 [8] Patent: CN107721925, 2018, A. Location in patent: Paragraph 0092; 0093 [9] Organic Syntheses, 1942, vol. 22, p. 5 [10] Journal of the Indian Chemical Society, 1998, vol. 75, # 10-12, p. 716 - 724 [11] European Journal of Medicinal Chemistry, 2010, vol. 45, # 2, p. 745 - 751 [12] Archiv der Pharmazie, 2009, vol. 342, # 12, p. 699 - 709 [13] Bioorganic and Medicinal Chemistry Letters, 2010, vol. 20, # 12, p. 3491 - 3494 [14] Heterocycles, 2010, vol. 80, # 2, p. 1047 - 1066 [15] European Journal of Medicinal Chemistry, 2012, vol. 56, p. 217 - 224 [16] Bioorganic and Medicinal Chemistry, 2013, vol. 21, # 14, p. 4170 - 4177 [17] Tetrahedron Letters, 2014, vol. 55, # 22, p. 3308 - 3311 [18] Bioorganic and Medicinal Chemistry Letters, 2014, vol. 24, # 14, p. 3014 - 3017 [19] Medicinal Chemistry, 2014, vol. 10, # 5, p. 506 - 511 [20] Chinese Chemical Letters, 2014, vol. 25, # 7, p. 1021 - 1024 [21] Bioorganic and Medicinal Chemistry, 2015, vol. 23, # 8, p. 1800 - 1807 [22] Patent: CN103755634, 2016, B [23] European Journal of Medicinal Chemistry, 2017, vol. 138, p. 1135 - 1146 [24] Chemical Biology and Drug Design, 2017, vol. 90, # 5, p. 926 - 935 [25] RSC Advances, 2018, vol. 8, # 68, p. 38995 - 39004