化学合成。
化学合成
合成路线 1(1. 合成:72080-83-2)
产率:66.5%
合成条件:With potassium carbonate In dichloromethane at -5 - 20℃; for 3 h; Inert atmosphere
实验步骤:在氮气保护下,以500 mL加三瓶二氯甲烷(100 mL),乙二胺(39 mL,0.58 mol)和碳酸钾(32.4 g,0.23 mol)将反应温度控制在-5~0,氯甲酸苄酯溶液(20.0) 在搅拌下缓慢滴加g,0.12mol)的二氯甲烷(100mL)溶液。 完成约1小时滴加,在室温下搅拌2小时。用水(200mL×2)洗涤反应物。分离有机层,用硫酸钠(10g)干燥有机层。减压浓缩,得到 淡黄色泡沫23.4g。将乙酸乙酯(80mL)加入到残余物中,在室温下搅拌直至完全溶解,逐滴加入石油醚(80mL),产生白色固体(白色固体甲酸苄酯),过滤, 浓缩母液,得到淡黄色油状物15.1g,收率66.5%。
参考文献:
- [1] Chemical Communications, 2017, vol. 53, # 52, p. 7088 - 7091 [2] New Journal of Chemistry, 2013, vol. 37, # 7, p. 1895 - 1905 [3] ACS Medicinal Chemistry Letters, 2014, vol. 5, # 5, p. 550 - 555 [4] Chemistry - A European Journal, 2011, vol. 17, # 19, p. 5251 - 5255 [5] Synthesis, 1984, # 12, p. 1032 - 1033 [6] Patent: CN104557704, 2017, B. Location in patent: Paragraph 0052; 0053; 0054 [7] Angewandte Chemie, International Edition, 2012, vol. 51, # 40, p. 10060 - 10063,4 [8] Angewandte Chemie, 2012, vol. 124, # 40, p. 10207 - 10210,4 [9] Angewandte Chemie - International Edition, 2012, vol. 51, # 40, p. 10060 - 10063 [10] Angew. Chem., 2012, vol. 124, # 40, p. 10207 - 10210,4 [11] Helvetica Chimica Acta, 1982, vol. 65, # 6, p. 1853 - 1867 [12] Chemistry Letters, 2007, vol. 36, # 10, p. 1220 - 1221 [13] Russian Journal of Bioorganic Chemistry, 1994, vol. 20, # 7, p. 397 - 405 [14] Bioorganicheskaya Khimiya, 1994, vol. 20, # 7, p. 740 - 750 [15] Journal of Organic Chemistry, 2007, vol. 72, # 22, p. 8280 - 8289 [16] Patent: WO2013/124286, 2013, A1. Location in patent: Page/Page column 65 [17] Patent: US2018/99940, 2018, A1. Location in patent: Paragraph 0658-0664 [18] Patent: CN103450164, 2017, B. Location in patent: Paragraph 0049; 0053; 0054
合成路线 2(2. 合成:72080-83-2)
产率:90%
合成条件:With triphenylphosphine In methanol; water for 2 h; Reflux
实验步骤:将三苯基膦(6.7g,25.56mmol)和水(15mL)加入到化合物9(3.8g,17.4mmol)的MeOH(40mL)溶液中。 将混合物在回流下加热2小时。 将混合物减压浓缩并通过柱色谱法纯化。 目标产物为浅棕色油状物(3g,90%)。 1 H NMR(CDCl 3,300MHz)δ7.33(s,5H),5.73(bs,1H),5.08(s,2H),3.19(bs,2H),2.76(bs,2H); 13 C NMR(CDCl 3,75MHz)δ156.8,136.6,128.5,128.0,66.6,43.6,41.5; LC-MS:m / z计算值C 10 H 14 N 2 O 2:194,实测值:195(M + 1)+。
参考文献:
- [1] Bulletin of the Korean Chemical Society, 2010, vol. 31, # 10, p. 2854 - 2860 [2] Medicinal Chemistry Research, 2016, vol. 25, # 5, p. 824 - 833 [3] Journal of Chemical Research, Miniprint, 1992, # 12, p. 3117 - 3132 [4] European Journal of Medicinal Chemistry, 2011, vol. 46, # 12, p. 5769 - 5777
合成路线 3(3. 合成:72080-83-2)
产率:51%
合成条件:Stage #1: With potassium acetate In 1,2-dimethoxyethane; ethanol; water at 20℃; for 1 h;
实验步骤:例12;制备N-(2-(4Z,7Z,10Z,13Z,16Z,19Z)-Docosa-4,7,10,13,16,19-己酰胺基乙基)-2-羟基苯甲酰胺(Ic-10);将乙二胺(1.0g,16.7mmol)溶于含有溴代绿色绿色的水(3.0mL)中作为指示剂。加入甲磺酸(2.8g,31mmol)的水(3.0ml)溶液,直至达到蓝色至浅黄色的转变。将溶液用乙醇(8.0mL)稀释并剧烈搅拌。在20℃下向混合物中加入Cbz-Cl(2.8g,16.7mmol)在二甲氧基乙烷(4mL)和50%w / v AcOK水溶液(10mL)中的溶液,同时保持浅黄绿色的颜色。指标。添加完成后,将混合物搅拌(室温,1小时)并在低温下真空浓缩以除去挥发物。将残余物与水(20mL)一起摇动并过滤。然后将滤液用甲苯(3.x.50mL)洗涤,用过量的40%NaOH水溶液碱化并用甲苯(3.x.50mL)萃取。将有机层用盐水(50mL)洗涤,用Na 2 SO 4干燥并蒸发,得到2-氨基乙基氨基甲酸苄酯,为油状物(1.65g,51%)。 C10H14N2O2的质量计算值= 194.23;发现:[M-H] + = 193.3。
参考文献:
- [1] Patent: US2010/41748, 2010, A1. Location in patent: Page/Page column 115