程 怡 吴 卫 张冬青 麦艳珍. 非水相酶促催化合成去唾液酸糖蛋白配体修饰物J. 药学学报, 2010,45(9): 1134-1138.
引用本文: 程 怡 吴 卫 张冬青 麦艳珍. 非水相酶促催化合成去唾液酸糖蛋白配体修饰物J. 药学学报, 2010,45(9): 1134-1138.
CHENG Yi, Tun- Wei, Zhang-Dong-Jing, Mai-Yan-Zhen. Enzyme-catalyzed synthesis of ASGPR ligand-targeted modifier in non-aqueous mediumJ. 药学学报, 2010,45(9): 1134-1138.
Citation: CHENG Yi, Tun- Wei, Zhang-Dong-Jing, Mai-Yan-Zhen. Enzyme-catalyzed synthesis of ASGPR ligand-targeted modifier in non-aqueous mediumJ. 药学学报, 2010,45(9): 1134-1138.

非水相酶促催化合成去唾液酸糖蛋白配体修饰物

Enzyme-catalyzed synthesis of ASGPR ligand-targeted modifier in non-aqueous medium

  • 摘要:

    去唾液酸糖蛋白受体 (ASGPR) 可用于介导药物载体肝靶向给药。本文用酶促酯化半乳糖与硬脂酸乙烯酯合成一种可用于镶嵌脂质体表面的去唾液酸糖蛋白靶向配体修饰物。通过薄层色谱 (TLC)、质谱 (ESI-MS) 和核磁共振 (1H NMR) 对产物结构进行确证, 并对酶种类、反应介质、酶的加入量、底物摩尔比、反应温度、反应时间等影响因素进行了考察。结果表明, 丙酮作为反应介质、Novozym 435固定化脂肪酶作为催化剂、酶加入量为30 mg·mL−1、半乳糖和硬脂酸乙烯酯的摩尔比为1560 下反应12 h, 硬脂酸乙烯酯的转化率可达到70%以上。

     

    Abstract:

    The asialoglycoprotein receptor (ASGPR) was used to mediate drug carrier for hepatic targeted drug delivery, this article showed the enzyme-catalyzed esterification of galactose and vinyl stearate and a kind of ASGPR ligand-targeted which was used to insert the surface of liposome has been synthesized.  The structure of product has been confirmed by TLC, ESI-MS and 1H NMR.  The factors of types and quantity of enzyme, organic solvents, molar ratio of substrate, temperature and time of reaction have been studied.  Results showed when using acetone as reaction medium, the quantity of Novozym 435 immobilized lipase was 30 mg·mL−1,  molar ratio of galactose to vinyl stearate was 15, and reacted at 60 for 12 h, the transformation of vinyl stearate reached more than 70%.  This study provides a novel and efficient route to the synthesis of ligand-  targeted modifier.

     

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