Page 211 - 《精细化工》2021年第10期
P. 211
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。