第 39 卷第 5 期Vol. 39 No. 5
2009 年 10 月Oct 2009

所属栏目:医药及中间体

1-乙酰氧基-2,3,5-三-苯甲酰氧基-β-D-呋喃核糖的合成工艺改进
邓 燕1,陶德良1,张永强1,谢维跃2 (1. 湖南工业大学 湖南省绿色包装与生物纳米技术应用重点实验室,湖南 株洲,412008;2. 湖南轻工研究院,湖南 长沙,410015)
摘 要:以D-核糖为原料经甲基化、苯甲酰化、乙酰化合成了1-乙酰氧基-2,3,5-三-苯甲酰氧基-β-D-呋喃核糖。系统地研究了物料配比、反应时间、反应温度对产品收率的影响。较佳的制备工艺为:5.0 g(0.033 mol)D-核糖溶于20 mL 盐酸/甲醇中,于20℃下反应3 h,所得产物再溶于50 mL吡啶中,滴加15 mL(0.129 mol)苯甲酰氯,于10℃下反应15 h,所得产物溶于40 mL冰醋酸和5 mL(0.083 mol)醋酸酐中,滴加3 mL浓硫酸于10℃反应15 h,即得产品,总收率达74.34%(HPLC纯度98.1%)。整个路线反应条件温和、原料价廉易得,有利于工业化规模生产。用红外光谱、质谱以及核磁共振氢谱对产物进行了表征。
关键词:1-乙酰氧基-2,3,5-三-苯甲酰氧基-β-D-呋喃核糖;合成;D-核糖;改进
中图分类号:Q532+.4  文献标识码:A  文章编号:1009-9212(2009)05- 0030-04
Improved Synthesis of 1-O-Acetyl-2,3,5-tri-O-benzoyl-β-D-ribofuranose
DENG Yan1,TAO De-liang1,ZHANG Yong-qiang1,XIE Wei-yue2 (1. Key laboratory of green packaging and application of biological nanotechnology,Hunan university of technology,Zhuzhou 412008, China;2. Hunan Light Industry Research Institute,Changsha 410015,China)
Abstract:1-O-Acetyl-2,3,5-tri-O-benzoyl-beta-D-ribofuranose was synthesized by using D-ribose as the starting material through methylation,benzoylation and acetylization. Effects of the ratio of reactants,reaction time,and reaction temperature on the yield of the product were studied in detail. The optimal reaction conditions were obtained as follows:5.0 g(0.033 mol) D-ribose was dissolved in 20 mL HCl/MeOH,followed by stirring the solution at 20℃ for 3 h. The reaction product was dissolved in 50 mL pyridine,then 15 mL(0.129 mol) benzoyl chloride was added,followed by stirring the solution at 10℃ for 15 h. The product was dissolved in a mixture of 40 mL glacial acetic acid and 5 mL(0.083 mol)acetic anhydride,then 3 mL oil of vitriol was added,the solution was stirred at 10℃ for 15 h to get the final product. By means of the above process,the total yield of 1-O-acetyl-2,3,5-tri-O-benzoyl-beta-D-ribofuranose was up to 74.34%(HPLC purity:98.1%). The feasibility for production with mild reaction conditions and cheap raw materials make it easy to produce 1-O-acetyl-2,3,5-tri-O-benzoyl-beta-D-ribofuranose in large scale. Structure of the product was identified by IR,MS and 1H NMR characterization.
Key words:1-O-acetyl-2,3,5-tri-O-benzoyl-β-D-ribofuranose;synthesis;D-ribose;improvement
基金项目: 国家自然科学基金资助项目(60571032),湖南省自然科学基金资助项目(06JJ4012),湖南省科技计划资助项目(2007FJ4050)。
作者简介:邓 燕(1971-),女,工程师,博士研究生,主要从事药物合成和生物工程研究。(E-mail:dy_dengyan@yahoo.com.cn)
收稿日期:2009-09-25