化学合成,医药阿法替尼中间体。
医药
合成路线 1(1. 合成:162012-69-3)
产率:79%
合成条件:at 0 - 110℃; for 3 h;
实验步骤:在0℃下,将得到的化合物(25g,152mmol)滴加到硫酸(50mL)和硝酸(51mL)的溶液中。 将混合物在室温下搅拌1小时,并加热至110℃,然后搅拌2小时。 将混合物冷却至室温并向其中加入冰水(300mL)。 将所得混合物搅拌约30分钟并过滤,得到标题化合物,为固体(25g,79%)。 NMR(300MHz,CDCl 3):<5 12.83(bs,1H),8.72(d,1H),8.32(s,1H),7.79(d,1H)MS(ESI +,m / z):210 [M +]H]+
参考文献:
- [1] Patent: WO2012/30160, 2012, A2. Location in patent: Page/Page column 25 [2] Journal of Medicinal Chemistry, 1996, vol. 39, # 4, p. 918 - 928 [3] Patent: WO2012/182, 2012, A1 [4] Patent: WO2012/356, 2012, A1 [5] Patent: EP2612860, 2013, A1 [6] Patent: US2013/184297, 2013, A1 [7] Bioorganic and Medicinal Chemistry, 2016, vol. 24, # 7, p. 1495 - 1503 [8] Bioorganic and Medicinal Chemistry, 2016, vol. 24, # 16, p. 3359 - 3370 [9] Patent: CN106008480, 2016, A [10] Patent: CN103987700, 2016, B [11] Bioorganic and Medicinal Chemistry, 2017, vol. 25, # 12, p. 3148 - 3157 [12] Patent: CN106892907, 2017, A [13] Patent: CN106866642, 2017, A [14] Patent: CN106831725, 2017, A [15] European Journal of Medicinal Chemistry, 2018, vol. 154, p. 29 - 43 [16] Patent: CN108456214, 2018, A
合成路线 2(2. 合成:162012-69-3)
产率:79%
合成条件:at 0 - 110℃; for 3 h;
实验步骤:7-氟-6-硝基-3H-喹唑啉-4-酮; 在0℃下,将(25g,152mmol)的化合物缓慢加入到浓硫酸(50ml)和发烟硝酸(51ml)的混合物中。 将所得溶液在室温下搅拌1小时,加热至110℃并搅拌2小时。 将溶液的温度冷却至室温,并向其中加入300ml冰水。 将所得固体搅拌约30分钟,过滤,得到标题化合物25g(收率:79%)。1H NMR(CDCl3)δ:7.79(d,1H),8.32(s,1H),8.72(d,IH) ),12.83(bs,IH)。
参考文献:
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