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GC法测定富马酸替诺福韦二吡呋酯的残留溶剂

2018-10-24袁秀菊宿亮赵静芝王玲兰袁红波

上海医药 2018年19期

袁秀菊 宿亮 赵静芝 王玲兰 袁红波

摘 要 目的:建立顶空毛细管GC法同时测定富马酸替诺福韦二吡呋酯原料药中乙醇、异丙醇、二氯甲烷、乙酸乙酯、四氢呋喃、N,N-二甲基甲酰胺、N-甲基吡咯烷酮7种残留溶剂的分析方法。方法:采用Agilent DB-624色谱柱,FID检测器,二甲基亚砜(DMSO)为溶剂。结果:在选定的色谱条件下,各溶剂峰均能良好分离,溶剂乙醇、异丙醇、二氯甲烷、乙酸乙酯、四氢呋喃、N,N-二甲基甲酰胺、N-甲基吡咯烷酮分别在相应浓度范围内与峰面积呈良好线性关系。各溶剂最低检测限符合要求。结论:经方法学验证,本法可用于富马酸替诺福韦二吡呋酯的残留溶剂测定。

关键词 核苷酸类抗病毒药 富马酸替诺福韦二吡呋酯 残留溶剂 气相色谱法

中图分类号:O657.71 文献标志码:A 文章编号:1006-1533(2018)19-0077-04

Determination of residual solvents of tenofovir disoproxil fumarate by GC

YUAN Xiujyu*, SU Liang, ZHAO Jingzhi, WANG Linglan, YUAN Hongbo

(Institute of Chemical Material Medica, Academy of Qianjin, Qianjin Group, Hunan Zhuzhou 412003, China)

ABSTRACT Objective: A capillary GC method with head-space sampling was established for determination of residual solvents including ethanol, isopropanol, dichloromethane, ethyl acetate, tetrahydrofuran, N, N-dimethylacetamide and N-methyl-2-pyrrolidone in raw material of tenofovir disoproxil fumarate. Methods: GC was performed on Agilent DB-624 capillary column with FID as detector and DMSO as the solvent. Results: The peaks of these residual solvents could be completely separated from the main constituent. The calibration curves of these solvents showed good linearity with their peak areas over the ranges of related concentrations, respectively. The limit of detection of each solvent could meet the requirements. Conclusion: It is proved by the methodological validation that this method can be used for the determination of the residual solvents remained in tenofovir disoproxil fumarate.

KEy WORDS nucleotide antiviral drug; tenofovir disoproxil fumarate; residual solvents; gas chromatography

富马酸替诺福韦二吡呋酯片(商品名:韦瑞德,Viread),是美国吉利德(Gilead)公司开发上市的一种核苷酸类抗病毒药[1]。2001年经美国FDA批准上市用于治疗抗人免疫缺陷病毒(HIV),后增補抗乙型肝炎病毒(HBV)活性。替诺福韦是一种无环的5-单磷酸腺苷类似物,其首先需要经二酯的水解转化为替诺福韦,然后通过细胞酶的磷酸化形成二磷酸替诺福韦。二磷酸替诺福韦通过与天然底物5-三磷酸脱氧腺苷竞争,并且在与DNA整合后终止DNA链,从而抑制HIV-1逆转录酶的活性[2-5]。此外,体内外研究表明,替诺福韦对HBV野生株、拉米夫定耐药株、阿德福韦耐药株均有较好抑制作用,给对拉米夫定或阿德福韦耐药患者提供了一个新型抗乙肝药物的选择。……

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