4-氯-7-氮杂吲哚是一种有机化学物质,主要用作有机中间体和医药中间体,可用于实验室研发过程和化工医药合成过程中。
有机中间体; 医药中间体
合成路线 1(1. 合成:55052-28-3)
产率:85%
合成条件:With 3-chloro-benzenecarboperoxoic acid; trichlorophosphate In 1,2-dimethoxyethane; n-heptane at 20 - 85℃; for 18 h;
实验步骤:将7-氮杂吲哚(3.6g,30mmol)溶于二甲氧基乙烷(17ml)和庚烷(33ml),间氯过氧苯甲酸(mCPBA)(8.1g,77%)并将混合物在室温下搅拌。过滤混合物 通过使用二甲氧基乙烷(34ml)和庚烷(64ml)溶液的滤纸,向所得化合物中加入三氯氧化磷(POCl 3)(22ml,0.24mol),18小时。将混合物在80℃加热回流。 将混合物充分冷却,用水(150ml)稀释,用6N氢氧化钠(NaOH)调至pH10,用滤纸在滤纸上过滤得到固体化合物(1),得到固体化合物(1)。 浅橙色(3.9克,产率85%):
参考文献:
- [1] Patent: KR101548492, 2015, B1. Location in patent: Paragraph 0048; 0049 [2] Chemical and Pharmaceutical Bulletin, 2014, vol. 62, # 3, p. 217 - 220 [3] Patent: EP2487180, 2012, A1. Location in patent: Page/Page column 20 [4] Patent: WO2011/23081, 2011, A1 [5] European Journal of Medicinal Chemistry, 2011, vol. 46, # 8, p. 3218 - 3226 [6] Bulletin of the Korean Chemical Society, 2012, vol. 33, # 5, p. 1571 - 1576 [7] Journal of Medicinal Chemistry, 2013, vol. 56, # 3, p. 1160 - 1170 [8] ChemMedChem, 2014, vol. 9, # 2, p. 277 - 281 [9] Archiv der Pharmazie, 2014, vol. 347, # 9, p. 635 - 641 [10] Patent: WO2014/151147, 2014, A1 [11] Patent: US9295673, 2016, B2 [12] Patent: US2014/336182, 2014, A1 [13] Patent: US2015/30588, 2015, A1 [14] Patent: US2015/218155, 2015, A1 [15] Patent: EP2955181, 2015, A1 [16] Patent: CN105777747, 2016, A [17] Journal of Medicinal Chemistry, 2017, vol. 60, # 11, p. 4636 - 4656 [18] Bioorganic and Medicinal Chemistry Letters, 2017, vol. 27, # 20, p. 4730 - 4734 [19] Journal of Enzyme Inhibition and Medicinal Chemistry, 2018, vol. 33, # 1, p. 1160 - 1166 [20] Patent: WO2006/46024, 2006, A1 [21] Patent: WO2007/125321, 2007, A2 [22] Patent: WO2007/125325, 2007, A1 [23] Patent: WO2007/125320, 2007, A1 [24] Patent: WO2008/5457, 2008, A2 [25] Patent: WO2008/124083, 2008, A2 [26] Patent: EP1921078, 2008, A1 [27] Patent: WO2008/139161, 2008, A1. Location in patent: Page/Page column 136-137 [28] Patent: WO2004/39796, 2004, A1 [29] Patent: WO2004/39796, 2004, A1
合成路线 2(2. 合成:55052-28-3)
产率:80%
合成条件:Stage #1: at 85 - 90℃; Stage #2: With sodium hydroxide In water
实验步骤:在室温下向7-氮杂吲哚中加入3-氯苯甲酸氧化物(51.9g,178mmol),加入三氯氧化磷(200mL)。 将溶液在85-90℃搅拌加热过夜。 在减压下蒸馏出磷酰氯。 加入水,用50%氢氧化钠水溶液将混合物碱化至pH9。 将浆液冷却至室温并过滤。 将收集的固体悬浮在水(200mL)中,搅拌,过滤并干燥,得到产物Int-6(21.7g,80%).1 H NMR(400MHz,CDCl 3)δ11.40(brs,1H),8.24( d,J = 5.2Hz,1H),7.43(d,J = 3.6Hz,1H),7.15(d,J = 5.2Hz,1H),6.63(d,J = 3.6Hz,1H)。
参考文献:
- [1] Tetrahedron, 2009, vol. 65, # 25, p. 4814 - 4819 [2] Patent: WO2011/23081, 2011, A1. Location in patent: Page/Page column 51-52 [3] Patent: US2007/293499, 2007, A1. Location in patent: Page/Page column 26 [4] Patent: US2014/336182, 2014, A1 [5] Patent: WO2006/46024, 2006, A1 [6] Patent: WO2007/125321, 2007, A2 [7] Patent: WO2007/125320, 2007, A1
合成路线 3(3. 合成:55052-28-3)
产率:57%
合成条件:at 90℃; for 18 h;
实验步骤:将POCl 3(10mL)加入到7-羟基-1H-吡咯并[2,3-b]吡啶-7-基3-氯苯甲酸酯(1.0g,3.4mmol)中。 将所得混合物加热至90℃,保持18小时。 然后将混合物冷却至室温并浓缩。 将得到的残余物用乙腈(“ACN”; 3mL)和水(3mL)稀释。 用50%NaOH调节pH至pH9。过滤所得固体并用水洗涤。 然后用DCM洗涤固体,得到4-氯-1H-吡咯并[2,3-b]吡啶(0.30g,57%收率)。
参考文献:
- [1] Bulletin of the Korean Chemical Society, 2012, vol. 33, # 5, p. 1571 - 1576 [2] Archiv der Pharmazie, 2014, vol. 347, # 9, p. 635 - 641 [3] Patent: WO2009/89352, 2009, A1. Location in patent: Page/Page column 53 [4] European Journal of Medicinal Chemistry, 2011, vol. 46, # 8, p. 3218 - 3226 [5] Journal of Enzyme Inhibition and Medicinal Chemistry, 2018, vol. 33, # 1, p. 1160 - 1166