Page 211 - 《精细化工》2021年第10期
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第 38 卷第 10 期                            精   细   化   工                                 Vol.38, No.10
             2021 年 10 月                             FINE CHEMICALS                                  Oct.  2021


              精细化工中间体
                                          沙库巴曲的工艺优化



                                                                                           2*
                                                    2
                                                                2
                                                                             1*
                            杨金纬      1,2 ,陈   权 ,丁   幸 ,陈新志 ,徐成苗
                 (1.  浙江大学  化学工程与生物工程学院,浙江  杭州  310058;2.  浙江昂利康制药股份有限公司,浙江  绍
                 兴  312432)

                 摘要:以 N-[(1R)-2-[1,1′-联苯]-4-基-1-(羟基甲基)乙基]氨基甲酸叔丁酯(化合物Ⅰ)为起始原料,经 TEMPO
                 (2,2,6,6-四甲基哌啶氧化物)氧化、Wittig 反应和脱乙酯,重结晶后得到中间体Ⅴ;接着经 10%Pd/C 氢化还原
                 后用 m(正庚烷)∶m (乙酸乙酯) = 1∶1 重结晶得到关键中间体Ⅵ;最后经乙酯保护,酰胺化缩合得到目标产物沙
                 库巴曲(化合物Ⅷ)。对关键氢化步骤的反应溶剂、添加剂、催化剂用量、反应温度、H 2 压力、反应时间以及
                 重结晶溶剂等反应参数进行了筛选,关键中间体Ⅵ的手性结构经手性 HPLC 方法分析,手性纯度 99.98%;目标
                 产物沙库巴曲的总收率约 50%,产物经 HPLC 检测,纯度达 100%。
                 关键词:沙库巴曲;重结晶;工业化;手性纯度;精细化工中间体
                 中图分类号:TQ463;TQ460.6      文献标识码:A      文章编号:1003-5214 (2021) 10-2141-09


                                         Process optimization of sacubitril


                                                                              1*
                                                                                               2*
                                                                2
                                     1,2
                                                    2
                         YANG Jinwei , CHEN Quan , DING Xing , CHEN Xinzhi , XU Chengmiao
                 (1. College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310058, Zhejiang, China; 2. Zhejiang
                 Anglikang Pharmaceutical Co., Ltd., Shaoxing 312432, Zhejiang, China)
                 Abstract:  N-[(1R)-2-[1,1'-biphenyl]-4-yl-1-(hydroxymethyl)ethyl] carbamate  tert-butyl ester (compound
                 Ⅰ) was oxidized by  TEMPO  (2,2,6,6-tetramethylpiperidinooxy), followed by  Wittig reaction, and  ethyl
                 ester removal, and then recrystallized to obtain intermediate  Ⅴ. Key  intermediate  Ⅵ  was obtained by
                 recrystallization with mixed solvent [m(n-heptane)∶m(ethyl acetate) = 1∶1] after hydrogenation reduction
                 of intermediate  Ⅴ by  10%Pd/C. Finally, target  product sacubitril (compound  Ⅷ) was obtained  by
                 amidation after protection with ethyl ester. The reaction parameters such as solvent, additive, catalyst
                 dosage, reaction temperature, H 2 pressure, reaction time and  recrystallization solvent affecting the key
                 hydrogenation for the synthesis of intermediate  Ⅵ  were investigated. And a process route suitable for
                 industrial  production was determined  and  used to carry out three  batches of  kilogram scale. The chiral
                 structure of key intermediate  Ⅵ  was analyzed by chiral HPLC, and the chiral purity was 99.98%. The
                 target product had total yield of about 50% with a purity of 100% by HPLC.
                 Key words: sacubitril; recrystallization; industrialization; chiral purity; fine chemical intermediates


                 沙库巴曲缬沙坦钠片(诺欣妥,LCZ696)(结                       射血分数(LVEF)≤ 40%〕成人患者。LCZ696 是
            构如下所示)是由诺华公司研发的全球首个血管紧                             一种首创的双效血管紧张素受体-脑啡肽酶抑制剂
            张素受体脑啡肽酶抑制剂,可有效降低心血管死亡                             ( ARNI ),结合了诺 华的高血 压药物缬 沙坦
            和心力衰竭住院的风险。该药于 2015 年先后在美国                         (Diovan,通用名:Valsartan)和实验性药物沙库
            和欧盟获得上市批准,2017 年中国食品药品监督管                          巴曲(Sacubitril)(结构如下所示)。Valsartan 是一
            理总局批准该药用于射血分数降低的慢性心力衰竭                             种血管紧张素Ⅱ受体拮抗剂,可改善血管舒张,刺
            〔纽约心脏病协会(NYHA)分级Ⅱ~Ⅳ级,左心室                           激身体排泄钠和水,沙库巴曲是一种脑啡肽酶抑制


                 收稿日期:2021-03-24;  定用日期:2021-06-30; DOI: 10.13550/j.jxhg.20210309
                 作者简介:杨金纬(1985—),男,博士生,E-mail:ethan85@163.com。联系人:陈新志(1962—),男,教授,E-mail: xzchen@zju.edu.cn;
                 徐成苗(1969—),男,高级工程师,E-mail:office@alkpharm.com。
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