摘要本文以联苯和溴乙酰溴为原料,经过傅-克酰化、O-烃化、环合、脱保护、N-酰化一系列反应,得到目标产物4,4’-二[5-[2-[N-[α-(N-甲氧羰基-氨基)-α-异丙基-乙酰基]-吡咯烷]-1H-咪唑]]联苯盐酸盐(BMS-790052)。对影响傅-克酰化反应的各种因素如溶剂、反应温度、反应时间等工艺参数进行了研究,取得了较优的反应条件。64298
实验表明:50mL二氯甲烷、0.058mol无水AlCl3、0.048mol溴乙酰溴,0OC滴加0.02mol联苯(溶于二氯甲烷中),回流反应4h,得到较高质量的4,4’-二(2-溴乙酰基)联苯。该工艺所包含的单元反应的工业化生产方法较为成熟,收率相对较高,为工业化生产提供依据。
毕业论文关键词:BMS-790052 傅-克酰化 工艺优化
毕业设计说明书(论文)外文摘要
Title Process optimization of BMS-790052
Abstract The synthesis of N,N'-[[1,1'-Biphenyl]-4,4'-diylbis[1H-imidazole-5,2-diyl-(2S)-2,1-pyrrolidinediyl[(1S)-1-(1-methylethyl)-2-oxo-2,1-ethanediyl]]]biscarbamic acid C,C'-dimethyl ester(BMS-790052) was investigatedand improved in this paper. Through the reactions of Friedel-crafts acylation, O-hydrocarbylation, ring-closure,deprotection, N-acylation, N,N'-[[1,1'-Biphenyl]-4,4'-diylbis[1H-imidazole-5,2-diyl-(2S)-2,1-pyrrolidinediyl[(1S)-1-(1-methylethyl)-2-oxo-2,1-ethanediyl]]]biscarbamic acid C,C'-dimethyl ester was synthesized by biphenyl.
Many factors which effect the Friedel-crafts acylation, such as time, temperature as well as catalyst were studied. The research verified that: 50 ml methylene chloride, 0.058 mol anhydrous AlCl3, 0.048 mol bromoacetyl bromide, dropwise added 0.02 mol biphenyl (dissolved in methylene chloride) under 0OC, refluxed for 4 h, then 4, 4 '- Bis(2-bromoacetyl) biphenyl was yielded .
Keywords: BMS-790052 Friedel-crafts acylation Process optimization
1 绪论 3
1.1 概述 3
1.1.1 研究背景 3
1.2.2 BMS-790052 3
1.2 相关单元反应的研究进展 6
1.2.1 傅-克酰基化 6
1.2.2 氧原子上的烃基化 7
1.2.3 咪唑环合成方法的研究进展 7
1.2.4 氨基保护与脱保护 9
1.2.5 氮原子上的酰化反应 11
1.3 本文的主要目的及内容 13
1.3.1 目的 13
1.3.2 内容 13
2 BMS-790052合成路线及各步反应机理探究 15
2.1 总反应方程式 15
2.2 反应机理 15
2.2.1 傅-克酰化反应 15
2.2.2 O-烃化 16
2.2.3 环合 17
2.2.4 脱保护 18
2.2.5 N-酰化 18
3 实验部分 19
3.1 傅-克酰化——中间体(1)的合成 19
3.1.1 反应式 19