Page 157 - 《精细化工》2022年第6期
P. 157
第 39 卷第 6 期 精 细 化 工 Vol.39, No.6
2022 年 6 月 FINE CHEMICALS June 2022
医药与日化原料
单核细胞趋化蛋白-1 抑制剂宾达利的合成及表征
杨旭锋,闫玉兵,陈栋栋
(吕梁学院 化学化工系,山西 吕梁 033001)
摘要:为了解决目前宾达利(BIN)合成工艺难放大生产的问题,报道了一种高效制备 BIN 的方法。以吲唑-3-
羧酸为起始原料,经酯化反应得到吲唑-3-羧酸甲酯(Ⅰ),该中间体与苄溴反应得到 1-苄基吲唑-3-羧酸甲酯(Ⅱ),
随后酯基进一步被硼氢化钠还原得到 1-苄基吲唑-3-甲醇(Ⅲ)。最后中间体Ⅲ与氯仿、丙酮在碱性条件下反应
1
13
得到目标产物 BIN,通过 HNMR、 CNMR、HRMS 和元素分析对 BIN 结构进行了表征。在 n(Ⅲ)∶n(NaOH)∶
n(CHCl 3 ) = 1∶10∶4,反应温度为 55 ℃,反应时间为 3 h 的最佳反应条件下,BIN 产率为 65.0%。该法步骤简
单,原料廉价易得,易于工业化生产。
关键词:宾达利;吲唑-3-羧酸;单核细胞趋化蛋白-1 抑制剂;酯基还原;硼氢化钠;医药原料
中图分类号:TQ463;TQ460.6 文献标识码:A 文章编号:1003-5214 (2022) 06-1223-06
Synthesis and characterization of bindarit, an inhibitor of
monocyte chemoattractant protein-1
YANG Xufeng, YAN Yubing, CHEN Dongdong
(Department of Chemistry & Chemical Engineering, Lyuliang University, Lyuliang 033001, Shanxi, China)
Abstract: In order to solve the problem that bindarit (BIN) synthesis process is difficult to industrially
produce, an efficient method for the synthesis of BIN was reported. Firstly, methyl 1H-indazole-3-carboxylate
(Ⅰ) was prepared by esterification reaction of 1H-indazole-3-carboxylic acid. Then, the intermediate Ⅰ
reacted with benzyl bromide to obtain methyl 1-benzyl-1H-indazole-3-carboxylate (Ⅱ). Subsequently, the
ester group of compound Ⅱ was further reduced by sodium borohydride and converted to (1-benzyl-
1H-indazol-3-yl)methanol (Ⅲ). Finally, the reaction of the intermediate Ⅲ with chloroform and acetone in
the presence of sodium hydroxide led to the target product BIN. The structure of BIN was confirmed by
1 HNMR, CNMR, HRMS and elemental analysis. Under the optimum conditions of n(Ⅲ)∶n(NaOH)∶
13
n(CHCl 3) = 1∶10∶4, reaction temperature of 55 ℃ and reaction time of 3 h, the yield of BIN was 65.0%.
This method was characterized by simple and convenient operation, cheap and easily available raw
materials and easy industrialized production.
Key words: bindarit; 1H-indazole-3-carboxylic acid; monocyte chemoattractant protein-1 inhibitor; ester
group reduction; sodium borohydride; drug materials
2-[(1-苄基-1H-吲唑-3-基)甲氧基]-2-甲基丙酸 在治疗肿瘤和冠状动脉支架再狭窄等疾病方面也发
[9]
又名宾达利(BIN),是一种单核细胞趋化蛋白-1 挥了巨大作用 。尽管宾达利的临床研究非常深入,
(MCP-1)选择性抑制剂 [1-3] ,能够有效预防炎症的慢 但关于其合成方法的报道相对较少。
性化,减少炎症在体内潜在的毒副作用,特别适用 目前已报道的宾达利合成方法主要有 4 种。路
于治疗狼疮性肾炎、急性胰腺炎、类风湿性关节炎等 线 1∶LEANDRO 等 [10] 以 1-苄基吲唑-3-羧酸为原
[8]
疾病 [4-7] 。此外,宾达利还可抑制白介素-6 的分泌 , 料,通过氢化铝锂还原得到 1-苄基吲唑-3-甲醇,随
收稿日期:2021-10-20; 定用日期:2022-01-18; DOI: 10.13550/j.jxhg.20211078
基金项目:山西省高等学校科技创新项目(2021L568,2019L0941);吕梁市引进高层次科技人才重点研发项目(2019105)
作者简介:杨旭锋(1988—),男,博士,副教授,E-mail:yangxufeng2018@163.com。