应用化学

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β-环糊精衍生物与吡罗昔康的包合特性

王茹林*,王恩成,秦姝竹,王鹏   

  1. (山西医科大学化学教研室 太原 030001)
  • 收稿日期:2011-09-06 修回日期:2011-11-23 出版日期:2012-08-10 发布日期:2012-08-10
  • 通讯作者: 王茹林,教授; Tel/Fax:0351-4135645; E-mail:rulin_wang@yahoo.cn; 研究方向:超分子化学
  • 基金资助:
    山西省科技厅自然科学基金(20051029)

Inclusion Properties of Piroxicam by β-Cyclodextrin and Its Derivatives

WANG Rulin*, WANG Encheng, QIN Shuzhu, WANG Peng   

  1. (The Chemistry Department of Shanxi Medical University,Taiyuan 030001,China)
  • Received:2011-09-06 Revised:2011-11-23 Published:2012-08-10 Online:2012-08-10

摘要: 采用荧光光谱、差热扫描和核磁共振法,研究了不同酸度下吡罗昔康(PX)与β-环糊精(β-CD)、羟丙基-β-环糊精(HP-β-CD)和磺丁醚-β-环糊精(SBE-β-CD)的包合特性。 结果表明,吡罗昔康与3种环糊精均形成了1∶2.5的包合物。 以包合常数为包合能力的量度,中性条件下,包合平衡常数分别为1.2×106、1.8×106、2.0×106,3种环糊精的包合能力为SBE-β-CD>HP-β-CD>β-CD。

关键词: 吡罗昔康, &, beta, -环糊精, 荧光光谱, 差热扫描, 核磁共振

Abstract: The inclusion properties of piroxicam(PX) by β-cyclodextrin(β-CD), hydroxypropyl-β-cyclodextrin(HP-β-CD), and sulfobutyl ether-β-cyclodextrin(SBE-β-CD) were studied by fluorescence spectroscopy, differential scanning calorimetry(DSC) and NMR at different pH. The results showed that the 1∶2.5 inclusion compounds were formed between piroxicam and CDs. Based on the formation constants, which were 2.0×106, 1.8×106, 1.2×106 in neutral media, the inclusion capacity showed the order of SBE-β-CD>HP-β-CD>β-CD.

Key words: piroxicam, &, beta, -cyclodextrin, fluorescence spectroscopy, DSC, NMR

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