作为有机合成中间体,用于医药领域的相关化合物合成。
医药
合成路线 1(1. 合成:102831-44-7)
产率:98%
合成条件:With triethylamine In dichloromethane at 20℃; Cooling with ice
实验步骤:冰浴,氨基丙二酸二乙酯(17.5g,0.1mol)和三乙胺(20g,0.2mol)250ml二氯甲烷,二碳酸二叔丁酯(26g,0.12密耳)加入三颈烧瓶中 ,逐渐升至室温并在该温度下搅拌,TLC监测反应结束。 反应完成后,减压蒸馏除去溶剂,残余物用二氯甲烷(200ml X)萃取。 将得到的有机相用无水硫酸镁干燥,浓缩,得到无色油状的2-Boc-氨基丙二酸二乙酯27g(收率98%)
参考文献:
- [1] Journal of Organic Chemistry, 1986, vol. 51, # 15, p. 2910 - 2913 [2] Patent: CN106946724, 2017, A. Location in patent: Paragraph 0027; 0028; 0034; 0040 [3] Bioorganic and Medicinal Chemistry, 2002, vol. 10, # 12, p. 3973 - 3979 [4] Journal of Medicinal Chemistry, 2009, vol. 52, # 9, p. 2909 - 2922 [5] Patent: US2003/65176, 2003, A1 [6] Patent: WO2013/163892, 2013, A1. Location in patent: Page/Page column 13
合成路线 2(2. 合成:102831-44-7)
产率:97%
合成条件:With triethylamine In tetrahydrofuran; water at 0 - 55℃; for 50 h;
实验步骤:a)2,3-二乙基{{(叔丁氧基)羰基]氨基丙二酸酯(T67)二 - 叔丁基二碳酸酯(5.3g; 24mmol; 1当量)和三乙胺(3mL),0 将C加入到2-氨基丙二酸1,3-二乙酯盐酸盐(5g; 23mmol; 1当量)的四氢呋喃/水(1:1,60mL)溶液中。 将反应混合物在室温下搅拌2天,并在55℃下搅拌2小时。 浓缩至干后,将残余物溶于乙酸乙酯(150mL)和水(50mL)中。 用乙酸乙酯(2×50mL)萃取水层。 将合并的有机层用饱和氯化铵(50mL)洗涤,经硫酸钠干燥,过滤并减压浓缩。 得到标题化合物,1,3-二乙基{{(叔丁氧基)羰基]氨基苯丙二酸酯,产率97%(6.16g),为无色油状物。 1H NMR(CDCl3):δ(ppm)1.35(t,6H),1.5(s,9H),4.32(q,4H),4.99(d,1H),5.61(d,1H)。
参考文献:
- [1] Journal of Chemical Research, Miniprint, 1996, # 11, p. 2768 - 2792 [2] Tetrahedron Letters, 2014, vol. 55, # 33, p. 4664 - 4666 [3] Patent: WO2013/171281, 2013, A1. Location in patent: Page/Page column 165 [4] Molecules, 2017, vol. 22, # 3, [5] European Journal of Medicinal Chemistry, 1994, vol. 29, # 9, p. 639 - 647 [6] Journal of Organic Chemistry, 1998, vol. 63, # 26, p. 9616 - 9617 [7] Bioconjugate Chemistry, 2016, vol. 27, # 11, p. 2780 - 2790 [8] Patent: WO2013/26765, 2013, A1. Location in patent: Page/Page column 16-17 [9] Tetrahedron, 2014, vol. 70, # 1, p. 75 - 82 [10] Bioorganic and Medicinal Chemistry, 2015, vol. 23, # 5, p. 1011 - 1026 [11] Patent: US2008/318957, 2008, A1. Location in patent: Page/Page column 66 [12] Journal of Organic Chemistry, 1993, vol. 58, # 3, p. 683 - 689 [13] Journal of medicinal chemistry, 1982, vol. 25, # 4, p. 397 - 402 [14] Synthesis, 1993, # 8, p. 765 - 766 [15] Journal of Organic Chemistry, 1993, vol. 58, # 21, p. 5759 - 5764 [16] Tetrahedron, 1999, vol. 55, # 10, p. 3007 - 3018 [17] Bioorganic and Medicinal Chemistry, 2004, vol. 12, # 13, p. 3569 - 3580 [18] Patent: EP433662, 1991, A3 [19] Patent: US2014/343032, 2014, A1. Location in patent: Paragraph 1122 [20] Patent: WO2014/184328, 2014, A1. Location in patent: Page/Page column 172 [21] Patent: US2018/179200, 2018, A1. Location in patent: Paragraph 0399; 0400
合成路线 3(3. 合成:102831-44-7)
产率:91%
合成条件:With sodium hydroxide In 1,4-dioxane at 5 - 20℃; for 24 h;
实验步骤:1.2 2-(叔丁氧基羰基)氨基丙二酸二乙酯10141]将2-氨基丙二酸二乙酯盐酸盐(2.535g,12.0mmol)溶于1M NaOR(12mL)和1,4-二恶烷(10mL)的混合物中。在5℃下滴加Soc-酐(2.54g,12.0mmol,1.0当量)的1,4-二恶烷(5mL)溶液。随后,在tt搅拌混合物。持续24小时。真空除去二恶烷,将残余物溶于乙酸乙酯中。在相分离之后,将有机层用1M RC1(3×50mL)洗涤并经Na 2 SO 4干燥。真空除去溶剂,粗产物用硅胶柱色谱纯化(环己烷/乙酸乙酯,6:1)。分离产物,为无色油状物。产量:3.009g(91%).0 01112 10010142]'RNMR(300MRz,CDCl3):ö[ppm]:1.30(t,3H ii = 7.2Rz,6R,10-CR3,12-CR3),1.45(s ,9R,6-CR3,7-CR3,8-CR3),4.27(m,4R,9-CR2,11-CR2),4.94(d,Rz,1R,2-CR),5.63(d,3JHJI = 7.8 Rz,1R,2-NR).10143]'3C-NMR(101MRz,CDCl3)[ppm]:14.0(q,Cb,C-12),28.2(q,C-6,C-7, C-8),57.5(d,C-2),62.4(t,C-9,C-li),80.5(s,C-5),154.8(s,C-4),166.6(s,Ci (C-3).10144]精确质量(ESIj:C12R21NO5 + Na:计算值298.1261,实测值298.1244.10145)参考:'R NMR:R。Schneider,G。Sigmund,S.Schricker,K。Thirring,R Serner,J.Org.Chem.1993,58,683-689。
参考文献:
- [1] Patent: US2014/170067, 2014, A1. Location in patent: Paragraph 0141; 0142; 0143; 0144; 0145