化学合成; 是合成由苯-磷酸骨干组成的核酸类似物的试剂
化学合成; 研究化学品
路线1:硝基还原法
- 起始原料:5-硝基间二甲苯-α,α′-二醇(1.07 g,5.84 mmol)
- 步骤:将起始原料溶解于甲醇(50 mL)中,加入Pd/C(10%,311 mg,0.29 mmol)作为催化剂;通入氢气置换空气后,于室温、5 psi氢气压力下氢化反应2小时;反应完成后通过硅藻土过滤去除催化剂,滤液经旋转蒸发浓缩得到白色固体产物(900 mg)
- 收率:100%
- 表征:1H NMR(400 MHz, MeOD): δ 6.71(s, 1H), 6.66(s, 2H), 4.51(s, 4H); 13C NMR(400 MHz, MeOD): δ 148.9, 143.8, 116.7, 114.3, 65.5
- 参考文献:Patent: WO2010/91150, 2010, A1. Location in patent: Page/Page column 119-120; Chemische Berichte, 1985, vol. 118, # 3, p. 1204 - 1229
路线2:酯还原法
- 起始原料:5-氨基间苯二甲酸二甲酯(20.0 g,96 mmol)
- 步骤:将起始原料的THF(350 mL)溶液在1小时内滴加到3.75当量LiAlH4(13.6 g,358 mmol)的THF(440 mL)回流混合物中;滴加完毕后继续回流搅拌2小时;冷却至室温后,依次加入MeOH(27 mL)和水(40 mL)淬灭反应;搅拌2小时后过滤,浓缩滤液至干,残余物从EtOAc中重结晶(2次)得到棕黄色晶体产物(10.2 g)
- 收率:70%
- 参考文献:Advanced Synthesis and Catalysis, 2005, vol. 347, # 1, p. 161 - 171; Journal of Medicinal Chemistry, 2011, vol. 54, # 13, p. 4350 - 4364; Patent: WO2017/177326, 2017, A1. Location in patent: Page/Page column 59; 64; 68; Patent: WO2018/191278, 2018, A2. Location in patent: Page/Page column 86; 90; 91; 94; 97; Organic and Biomolecular Chemistry, 2018, vol. 16, # 41, p. 7588 - 7594; Journal of Medicinal Chemistry, 2010, vol. 53, # 9, p. 3480 - 3488; Journal of Medicinal Chemistry, 2012, vol. 55, # 23, p. 10405 - 10413; Bulletin of the Chemical Society of Japan, 2008, vol. 81, # 8, p. 1012 - 1018; Supramolecular Chemistry, 2018, vol. 30, # 10, p. 822 - 831; Journal of the American Chemical Society, 2018, vol. 140, # 40, p. 13011 - 13021