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第 44 卷第 6 期Vol. 44 No. 6
2014 年 12 月Dec 2014

所屬欄目:醫藥及中間體

阿奇霉素合成工藝改進(jìn)
金 勇,喬 偉,王兆剛,侯仲軻* (浙江國邦藥業(yè)有限公司, 浙江 紹興 312369)
摘 要:以紅霉素6,9-亞胺醚為起始原料,經(jīng)亞胺氫化還原和N-甲基化2步反應制備阿奇霉素。還原反應采用Pt/C做催化劑,反應溫度為48~52℃,壓力為0.8~1.0 MPa;甲基化反應條件:pH為5.0~6.0,38~42℃保溫12 h。2步反應采用異丙醇為溶劑,實(shí)現了2步反應同溶劑體系制備阿奇霉素,2步收率88.0%,純度98.7%。
關(guān)鍵詞:阿奇霉素;紅霉素6,9-亞胺醚;異丙醇;Pt/C
中圖分類(lèi)號:R978.1  文獻標識碼:A  文章編號:1009-9212(2014)06-0049-03
Improvement on Synthesis of Azithromycin
JIN Yong, QIAO Wei, WANG Zhao-gang, HOU Zhong-ke (Zhejiang Guobang Pharmaceutical Co., Ltd., Shaoxing 312369, China)
Abstract:Azithromycin is prepared by means of hydrogenation and methylation from erythromycin 6,9-iminoether. The hydrogenation of 6,9-iminoether is catalyzed by Pt/C at 48~52℃ and under the pressure of 0.8~1.0 MPa. The methylation is carried out by using formaldehyde and formic acid. The pH value of the reaction mixture is adjusted to 5.0~6.0 and the reaction is monitored for 12 hour at 38~42℃. It should be noted that both of these two reactions are carried out in the same solvent-isopropanol. After recrystallization, an azithromycin dehydrate(88%, purity of 98.7%)is obtained.
Key words:Azithromycin; erythrymicin 6,9-iminoether; isopropanol; Pt/C
作者簡(jiǎn)介:金 勇(1980-),男,江西萍鄉人,工程師,碩士,研究方向:化學(xué)工程。
聯(lián) 系 人:侯仲軻,研究員,研究方向:醫藥及中間體(E-mail:houzk2008@hotmail.com)。
收稿日期: 2014-10-1
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