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阿司匹林磷脂复合物的制备及其表征

2017-10-10贺智勇吴朝花严俊丽李海志沈祥春陶玲

中国药房 2017年25期

贺智勇,吴朝花,严俊丽,李海志,沈祥春,陶玲#

(1.贵州医科大学药学院,贵阳550004;2.贵州省普通高等学校天然药物药理与成药性评价重点实验室,贵阳 550025)

阿司匹林磷脂复合物的制备及其表征

贺智勇1,2*,吴朝花1,2,严俊丽1,2,李海志1,2,沈祥春1,2,陶玲1,2#

(1.贵州医科大学药学院,贵阳550004;2.贵州省普通高等学校天然药物药理与成药性评价重点实验室,贵阳 550025)

目的:制备阿司匹林磷脂复合物(ASP-PC)并进行表征。方法:以ASP与PC的复合率为指标,采用单因素试验筛选ASP-PC的制备方法、PC种类、溶剂种类、反应时间、反应温度、溶剂体积和药脂比,并进行验证。采用紫外分光光度法、热重分析法、X射线衍射法和傅里叶红外光谱分析对所制ASP-PC进行表征。结果:采用磁力搅拌-冷凝回流法,药物-大豆磷脂比为1∶3(mol/mol),溶剂为四氢呋喃(50 mL),58℃下反应3 h,所制ASP-PC的平均复合率为83.52%(RSD=1.16%,n=3)。与ASP、ASP和PC的物理混合物比较,紫外光谱显示ASP-PC没有出现新的吸收峰;热重分析、X射线衍射分析和傅里叶红外光谱分析显示ASP-PC中的ASP与PC发生了相互作用,且ASP-PC在0~300℃范围内质量变化较小。结论:成功制得ASP-PC,其中ASP与PC复合成功,但仍有微量ASP以晶体形式存在。

阿司匹林;磷脂复合物;制备工艺;光谱学性质

ABSTRACTOBJECTIVE:To prepare aspirin phospholipid complex(ASP-PC)and conduct the characterization.METHODS:Using the combination rate of ASP and PC as index,single factor test was used to screen the preparation method of ASP-PC,PC type,solvent type,reaction time,reaction temperature,solvent volume and drug-lipid ratio.The verification test was conducted.UV spectrophotometry,Thermogravimetric analysis,X-ray diffraction and Fourier transform infrared spectroscopy were used for the characterization of ASP-PC.RESULTS:Magnetic stirring-condensing reflux method was adopted,drug-soybean phospholipids ratio was 1 ∶3(mol/mol),solvent was tetrahydrofuran,reacting for 3 h under 58 ℃.The average combination rate of prepared ASP-PC was 83.52%(RSD=1.16%,n=3).Compared with ASP,physical mixture of ASP and PC,UV spectrum showed that ASP-PC had no new absorption peak.Thermogravimetric analysis,X-ray diffraction and Fourier transform infrared spectroscopy showed the ASP and PC in ASP-PC were interacted;and ASP-PC changed little in quality within 0-300 ℃.CONCLUSIONS:ASP-PC can be successfully prepared,in which,ASP and PC were combined successfully;while there are still trace amounts of ASP in the form of crystals.

KEYWORDSAspirin;Phospholipid complex;Preparation technology;Spectroscopic properties

阿司匹林(Asprin,ASP)又名乙酰水杨酸,在干燥空气中稳定,遇潮会缓慢水解为水杨酸和醋酸,微溶于水;传统用于解热镇痛、抗炎抗风湿疾病,数年来已广泛用于抑制血小板聚集,成为心血管疾病的重要基础治疗药物[1]。另外,其在抑制动脉粥样硬化、抗肿瘤、防治心肌纤维化[2]等方面的临床用途也不断得到扩展。……

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