作为医药中间体,用于合成相关药物分子。
医药
合成路线 1(1. 合成:443882-99-3)
产率:99%
合成条件:With potassium carbonate In acetone at 30℃; for 16 h;
实验步骤:将2-氯-4-硝基苯酚(35g,0.2mol),间呋喃苄基溴(45.4g,0.24mol),K 2 CO 3(55.2g,0.4mol)和丙酮(800mL)的混合物在30℃下搅拌16小时。。 过滤所得混合物并用丙酮洗涤。 浓缩滤液,得到粗产物,用石油醚洗涤,干燥,得到产物1502,为黄色固体(55.0g,收率99%)。 1H NMR(DMSO-J6):δ8.33(d,J = 3.3Hz,1H),8.21-8.26(m,1H),7.42-7.50(m,2H),7.29-7.33(m,2H),7.16- 7.22(m,IH),5.39(s,2H)。 LC-MS:282(M + 1)。
参考文献:
- [1] Patent: WO2008/33747, 2008, A2. Location in patent: Page/Page column 172 [2] Journal of Medicinal Chemistry, 2015, vol. 58, # 14, p. 5522 - 5537 [3] Patent: US2004/53946, 2004, A1 [4] Patent: US2015/366868, 2015, A1. Location in patent: Paragraph 0157 [5] Patent: CN103483324, 2016, B. Location in patent: Paragraph 0040; 0050-0051 [6] Patent: CN105085496, 2018, B. Location in patent: Paragraph 0040; 0041 [7] Patent: WO2006/44524, 2006, A1. Location in patent: Page/Page column 50 [8] Patent: WO2006/55268, 2006, A2. Location in patent: Page/Page column 31; 32 [9] Patent: US2018/208564, 2018, A1. Location in patent: Paragraph 0348-0349 [10] Patent: US2018/208584, 2018, A1. Location in patent: Paragraph 0285; 0286 [11] Patent: US2003/232883, 2003, A1 [12] Bioorganic and Medicinal Chemistry Letters, 2006, vol. 16, # 17, p. 4686 - 4691 [13] Patent: EP1990337, 2008, A1. Location in patent: Page/Page column 6-7 [14] Patent: EP2116540, 2009, A1. Location in patent: Page/Page column 6 [15] Patent: US2008/300248, 2008, A1. Location in patent: Page/Page column 4 [16] Patent: US2010/168142, 2010, A1. Location in patent: Page/Page column 4 [17] Archiv der Pharmazie, 2016, vol. 349, # 11, p. 827 - 847
合成路线 2(2. 合成:443882-99-3)
产率:92%
合成条件:With potassium hydroxide In acetonitrile at 35 - 40℃; for 18 h;
实验步骤:实施例1a为了完成3-氯-4-(3-氟苄氧基)硝基苯的类似合成,将3-氟苄醇(0.30kg,2.39mol,1.05当量)溶解在ACN(6.0L)中并向其中加入氢氧化钾 薄片(85%)(0.16千克,1.25当量)。 将所得悬浮液温热至35℃。在35-40℃下加入3-氯-4-氟硝基苯(0.40kg,2.28mol)在ACN(2.0L)中的溶液。将混合物保持18小时。。 然后将混合物冷却回20-25℃,用水(8L)淬灭,过滤所得浆液并用水(2×0.40L)洗涤。 将所得产物在45℃,10mm Hg压力下干燥25小时,得到0.59kg(产率92%)。
参考文献:
- [1] Patent: US2006/270668, 2006, A1. Location in patent: Page/Page column 16 [2] Patent: US2006/270669, 2006, A1. Location in patent: Page/Page column 19-20 [3] Patent: WO2009/63054, 2009, A1. Location in patent: Page/Page column 37; 68 [4] Journal of Medicinal Chemistry, 2010, vol. 53, # 24, p. 8546 - 8555 [5] Patent: WO2011/2523, 2011, A1. Location in patent: Page/Page column 43
合成路线 3(3. 合成:443882-99-3)
产率:57%
合成条件:With potassium carbonate In acetonitrileReflux
实验步骤:步骤1:2-氯-1-(3-氟苄氧基)-4-硝基苯2-氯-4-硝基苯酚(3.4g,20mmol),3-氟苄基氯(2.8g,20mmol)和碳酸钾(3.3g) 将24mmol)在乙腈(30mL)中回流过夜。 将反应混合物倒入100mL H 2 O中,用乙酸乙酯萃取。 将有机相用饱和盐水洗涤,干燥,真空浓缩,得到粗产物。 将粗产物用石油醚洗涤,过滤并干燥,得到标题所示的化合物(3.2g,57%)。 1H NMR(CDCl3):δ8.35(1H,d,J = 2.8Hz),8.17-8.14(1H,m),7.44-7.38(1H,m),7.25-7.19(2H,m),7.10-7.06( 1H,m),7.03(1H,d,J = 9.2Hz),5.26(2H,s)。
参考文献:
- [1] Patent: US2016/214964, 2016, A1. Location in patent: Paragraph 0124 [2] European Journal of Medicinal Chemistry, 2015, vol. 94, p. 175 - 194 [3] Patent: EP3181553, 2017, A1. Location in patent: Paragraph 0198; 0199 [4] European Journal of Medicinal Chemistry, 2018, vol. 144, p. 330 - 348 [5] European Journal of Medicinal Chemistry, 2018, vol. 155, p. 316 - 336