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第 48 卷第 1 期Vol. 48 No. 1
2018 年 2 月Feb 2018

所屬欄目:醫藥及中間體

Suvorexant關(guān)鍵中間體的合成研究
葉海偉1,周麗萍1,王志華2 (1.臺州職業(yè)技術(shù)學(xué)院 化學(xué)制藥研究所,浙江 臺州 318000;2. 浙江新東港藥業(yè)股份有限公司,浙江 臺州 318000)
摘 要:以2-氨基乙醇(2)為原料,經(jīng)Ns保護,與(R)-(3-羥丁基)-氨基甲酸叔丁酯(4)發(fā)生縮合反應,再經(jīng)Mitsunobu關(guān)環(huán)與脫Ns保護反應,得到Suvorexant關(guān)鍵中間體1?偸章蕿57%,產(chǎn)物的結構經(jīng)1H NMR和MS分析確證,該方法操作簡(jiǎn)單、收率高、無(wú)手性異構體雜質(zhì)產(chǎn)生。
關(guān)鍵詞:Suvorexant;2-氨基乙醇;(R)-(3-羥丁基)-氨基甲酸叔丁酯
Synthesis of the Key Intermediate of Suvorexant
YE Hai-wei1, ZHOU Li-ping1, WANG Zhi-hua2 (1. Chemical Pharmaceutical Research Institute, Taizhou Vocational & Technical College, Taizhou 318000, China; 2. Zhejiang Neo-Dankon Pharmaceutical Co., Ltd., Taizhou 318000, China)
Abstract:(R)-Tert-butyl 5-methyl-1,4-diazepane-1-carboxylate(1), a key intermediate for Suvorexant was synthesized via N-protection using 2-aminoethanol (2) as the staring material, followed by condensation with (R)-tert-butyl (3-hydroxybutyl)carbamate (4), which finally led to 1 through Mitsunobu and deprotection reactions. The total yield was up to 57%, and the structure of the product was characterized using 1H NMR and MS spectra. The improved synthetic route was of advantages including simple operation, high yield, and none of chiral isomers impurity production.
Key words:Suvorexant; 2-aminoethanol; (R)-tert-butyl(3-hydroxybutyl)carbamate
基金項目:臺州市科技計劃項目(162gy54),臺州職業(yè)技術(shù)學(xué)院校級課題(2018DKC06)。
作者簡(jiǎn)介:葉海偉(1983-),男,浙江臺州人,講師,博士,主要從事藥物及中間體的合成及工藝開(kāi)發(fā)。
收稿日期:2018-02-27
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