第 51 卷第 6 期 |  | Vol. 51 No. 6 | 2021 年 12 月 | Dec 2021 |
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所屬欄目:醫藥及中間體
Cobicistat 關(guān)鍵中間體的合成工藝研究 |
王軍緒, 門(mén) 靖
(西安萬(wàn)隆制藥股份有限公司, 陜西 西安 710119)
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摘 要:以 2-甲基硫代丙酰胺為原料, 經(jīng)過(guò) 3 步反應得到 Cobicistat 關(guān)鍵中間體(S)-1-(2-異丙基噬哇-4-
基)甲基-1-甲基-3-(2-氧代四氫吠喃-3-基)腺, 反應總收率為 52.7 %[以 2-甲基硫代丙酰胺(2)計]。 中間體及產(chǎn)物結構經(jīng) 1H NMR、 ESI-MS 表征。
確定了合成中間體 4 的適宜物料比為: n(甲胺鹽酸鹽):n(3)=2.0:
1.0。 優(yōu)化了產(chǎn)物 1 的工藝條件: 物料配比為 n(CDI):n(5):n(4)=1.5:1.2:1.0, 反應溶劑為二氯甲炕, 反應時(shí)間 10 h。 優(yōu)化條件下, 產(chǎn)物 1
的收率達 80.8 %。
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關(guān)鍵詞:Cobicistat 關(guān)鍵中間體 合成工藝
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中圖分類(lèi)號:TQ460 文獻標識碼:A 文章編號:1009-9212(2021)06-0035-04 |
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Synthesis of Key Intermediate of Cobicistat
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WANG Jun-xu, MEN Jing
(Xi'an Wanlong Pharmaceutical Co.,Ltd., Xi'an 710119, China)
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Abstract:(S)-1-(2-Isopropylthiazole-4-yl) methyl-1-methyl-3-(2-oxo-oxolane-3-yl) urea, the key
intermediate
of Cobicistat, was synthesized from 2-methylthio- propionamide in a three-step reaction, the total
yield was 52.7% (base on compound 2). The structures of intermediates and products were
characterized by 1H NMR and ESI-MS. The suitable material ratio of the synthetic intermediate 4 is
as followings: n (methylamine hydrochloride):n (3)=
2.0 :1.0; The mole ratio of the synthetic product 1 was of n (CDI):n (5) :n (4)=1.5 :1.2 :1.0; the
reaction solvent was
dichloromethane, the reaction time was 10 h, and the yield of product 1 was up to 80.8% under these
reaction conditions.
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Key words:
Cobicistat; key intermediate; synthetic process
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作者簡(jiǎn)介:
王軍緒(1978—),男,陜西三原人,工程師,主要從事藥物合成、中試生產(chǎn)及技術(shù)管理工作。
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收稿日期:2021-07-20
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