第 42 卷第 2 期 |  | Vol. 42 No. 2 | 2012 年 4 月 | Apr 2012 |
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所屬欄目:醫藥及中間體
比沙可啶的合成工藝研究 |
張軍輝1,劉英華1,李金嶺2,李洪玉2,姜申德1*
(1.天津大學(xué) 藥物科學(xué)與技術(shù)學(xué)院,天津 300072;2. 河北康泰藥業(yè)有限公司,河北 滄州 061000) |
摘 要:以2-吡啶甲醛為起始原料,在濃硫酸催化下,與苯酚縮合得到4,4'-二羥基二苯基-(2-吡啶)-甲烷和2,4'-二羥基二苯基-(2-吡啶)-甲烷,利用二者在乙酸乙酯中溶解度的差別,分離得到4,4'-二羥基二苯基-(2-吡啶)-甲烷,用氫氧化鈉轉變得到酚鈉鹽后,經(jīng)乙;玫奖壬晨舌。其結構經(jīng)核磁共振氫譜確證,純度經(jīng)液相色譜分析為99%。改進(jìn)后的合成工藝操作簡(jiǎn)便,收率可達58%。 |
關(guān)鍵詞:4',4''-二羥基二苯基-(2-吡啶)-甲烷;比沙可啶;乙;磻 |
中圖分類(lèi)號:R975+.3 文獻標識碼:A 文章編號:1009-9212(2012)02-0030-03 |
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Synthesis of Bisacodyl |
ZHANG Jun-hui1,LIU Ying-hua1,LI Jin-ling2,LI Hong-yu 2,JIANG Shen-de1*
(1. School of Pharmaceutical Science and Technology,Tianjin University,Tianjin 300072,China;2. Hebei Kangtai Pharmaceutical Co.,Ltd. Cangzhou 061000,China) |
Abstract:Pyridine-2-aldehyde(2)was reacted with phenol(3)in the presence of concentrated sulfuric acid to give a mixture of 4,4'-dihydroxy-diphenyl-(2-pyridyl)-methane(4)and 2,4'-dihydroxy-diphenyl-(2-pyridyl)-methane(5). 4 was isolated from the mixture with purity of 99%(LC)due to its low solubility in ethyl acetate and was transformed to sodium salt with sodium hydroxide. Further acetylation of the sodium salt gave the title compound bisacodyl(1)in overall yield of 58%,that the structure was confirmed by 1H NMR. |
Key words:4,4'-dihydroxy-diphenyl-(2-pyridyl)-methane;bisacodyl;acetylation |
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作者簡(jiǎn)介:張軍輝(1986-),男,河南信陽(yáng)人,碩士研究生,研究方向:藥物化學(xué)。(E-mail:zhangjunhui@tju.edu.cn)
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聯(lián) 系 人: 姜申德,教授,博士生導師,主要從事藥物化學(xué)研究工作。(E-mail:jianggroup@tju.edu.cn)
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收稿日期: 2012-04-1
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