化学合成。
化学合成
路线1:4-叔丁基苯甲酰肼合成(原料:4-叔丁基苯甲酸甲酯)
- 步骤:向120ml二恶烷中加入40.0g(0.21mol)4-叔丁基苯甲酸甲酯和60.0g(1.20mol)水合肼,回流反应28小时;反应完成后冷却至室温,倒入1000ml水中,过滤收集白色固体,真空干燥。
- 条件:1,4-二恶烷溶剂,回流28小时。
- 收率:36.0g,90.0%。
- 参考文献:[1] Patent: WO2009/80797, 2009, A1;[2] Letters in Drug Design and Discovery, 2012, vol.9, #3;[3] Patent: CN104326980, 2016, B;[4] Journal of Enzyme Inhibition and Medicinal Chemistry, 2016, vol.31;[5] Chemistry - A European Journal, 2013, vol.19, #4;[6] Chemistry Letters, 2018, vol.47, #2;[7] Journal of the American Chemical Society, 1953, vol.75;[8] Molecular Crystals and Liquid Crystals, 2003, vol.405;[9] Bioorganic and Medicinal Chemistry, 2012, vol.20, #11;[10] Asian Journal of Chemistry, 2014, vol.26, #8;[11] Synthetic Communications, 2014, vol.44, #18;[12] Bioorganic and Medicinal Chemistry, 2014, vol.22, #17;[13] Letters in Drug Design and Discovery, 2016, vol.13, #9;[14] Bioorganic and Medicinal Chemistry, 2018, vol.26, #8。
路线2:4-叔丁基苯甲酰肼合成(原料:4-叔丁基苯甲酸)
- 步骤:Stage #1:5.2g(29.2mmol)4-叔丁基苯甲酸溶于15ml亚硫酰氯,加少量DMF,80℃反应8小时,减压过滤除亚硫酰氯得酰氯;Stage #2:酰氯溶于120ml THF,加入35ml水合肼和3.7ml三乙胺,65℃反应12小时,减压过滤,加过量水,盐酸中和,乙酸乙酯重结晶。
- 条件:Stage #1:20-80℃,8小时;Stage #2:65℃,12小时(THF溶剂,水合肼、三乙胺)。
- 收率:3.5g,64%。
- 参考文献:[1] Indian Journal of Chemistry - Section B, 2010, vol.49, #4;[2] Patent: US2012/46472, 2012, A1;[3] Journal of Heterocyclic Chemistry, 2010, vol.47, #4;[4] Chinese Journal of Chemistry, 2011, vol.29, #10;[5] Letters in Drug Design and Discovery, 2012, vol.9, #3;[6] Bioorganic and Medicinal Chemistry, 2012, vol.20, #11;[7] Chemistry - A European Journal, 2013, vol.19, #4;[8] Bioorganic and Medicinal Chemistry, 2013, vol.21, #8;[9] Journal of Heterocyclic Chemistry, 2013, vol.50, #4;[10] Journal of the Brazilian Chemical Society, 2014, vol.25, #1;[11] Asian Journal of Chemistry, 2014, vol.26, #8;[12] European Journal of Medicinal Chemistry, 2013, vol.64;[13] Synthetic Communications, 2014, vol.44, #18;[14] Bioorganic and Medicinal Chemistry, 2014, vol.22, #17;[15] European Journal of Medicinal Chemistry, 2015, vol.96;[16] Patent: CN104326980, 2016, B;[17] Letters in Drug Design and Discovery, 2016, vol.13, #9;[18] Cancer Chemotherapy and Pharmacology, 2017, vol.80, #5;[19] Bioorganic and Medicinal Chemistry, 2018, vol.26, #8。