第40卷,第10期 光谱学与光谱分析Vol.40,No.10,pp
289-2902 0 2 0年1 0月 Spectroscopy and Spectral Analysis October,2020
血小板受体激动剂艾曲波帕二乙醇胺的结构和热稳定性分析
马雨璇,戴苏云,王 娜,王 冰,李 钢*
南京师范大学分析测试中心,江苏南京 210023
摘 要 艾曲波帕二乙醇胺是一种非肽类、小分子的促血小板生成素受体激动剂,已被批准用于治疗肝炎、
肝硬化和免疫性血小板减少性紫癜[1-2]。通过元素分析(EA)、质谱(MS)、核磁共振波谱(NMR)
、扫描电子显微分析(SEM)、傅里叶变换红外光谱(FTIR)、差示扫描量热法(DSC)和X射线粉末衍射法(PXRD)等手段对其结构进行表征。采用X射线粉末衍射原位升温附件与热重-差热联用仪(TG-DTA)对其晶型I进行热稳定性研究。EA,MS和NMR的检测结果与艾曲波帕
二乙醇胺分子结构一致。扫描电镜表明其微观形貌呈粒子状和片层状且具有较干净的表面。DSC曲线显示在133.3℃开始出现脱溶峰。PXRD图谱显示在2θ=5.59°,7.35°,8.16°,11.26°,13.81°,17.02°,22.81°,26.55°处有可用来定性鉴别的特征峰。艾曲波帕二乙醇胺晶型I在程序升温条件下于167.8~193.5℃和193.5~226.9℃出现两个阶段的失重并伴随着晶型结
构的改变。以上的分析结果为我国仿制药的生产和鉴定提供了较为全面的参考。关键词 艾曲波帕二乙醇胺晶型Ⅰ;定性分析;X射线粉末衍射;热分析文献标识码:A 文章编号:1000-0593(2020)10-0289-
02 收稿日期:2020-03-30,修订日期:2020-07-10 *通讯联系人葡萄怎么画
元素分析(
EA)测得样品中C:57.90%;H:6.83%;N:14.83%,检测结果与样品艾曲波帕二乙醇胺(图1)的分子式相符(C25H22N4O4·2C2H7NO);质谱分析(MS)测得样品的最高质量峰m/z为443.20,为艾曲波帕二乙醇胺样品失去二乙醇胺后的(M+1)峰,与艾曲波帕C25H22N4O4分子量
442一致;核磁共振波谱(NMR)的数据如下:1
H NMR(DM-
SO-d),δ(pp
m):8.21(S,1H),7.89(S,2H),7.82~7.78(T,8H),7.65~7.63(M,4H),7.39~7.37(M,4H)
,7.06~7.04(M,4H),3.59(T,4H),2.85(T,3H),2.39~
2.19(M,6H),13 C NMR(DMSO-d),δ(pp
m):170.72,162.15,149.36,139.52,138.64,137.79,137.48,135.83,
130.45,130.04,129.28,128.85,127.13,126.47,125.97,119.5,118.57,114.90,58,41.48,19.74,18.76,17.05,与中国专利102448942一致。傅里叶变换红外光谱(FTIR)分析结果如下,波数3 169cm-1是—NH2的振动峰,1 416cm-1是C—N的振动峰,80
4cm-1是苯环上氢的吸收峰,1 322cm-1是醇羟基的振动峰,1 566cm-1是酰胺结构的变形振动峰,1 641cm-1是羧酸中的 C O的吸收峰,3 410和1 318cm-1是酚羟基的振动峰,与艾曲波帕二乙醇胺化学结构中含有的基团相符。扫描电子显微分析(SEM)显示艾曲波帕二乙醇胺主要呈粒子状和片块状,如图2所示;X射线粉末衍射分析(PXRD)得
到8个X射线衍射特征峰,2θ=
5.59°
,7.35°,8.16°,11.26°,13.81°,17.02°,
22.81°,Fig.1 Structual formula of eltrombopag
diethanolamineFig.2 SEM image of eltrombopag diethanolamine26.55°,d=15.77,12.00,10.80,7.84,6.42,5.21,3.90和3.35nm,相对强度I/I0=高铁可以带饮料吗
5,24,26,56,14,100,17和
22,确定其为艾曲波帕二乙醇胺晶型Ⅰ;差示扫描量热仪
新闻分类
(DSC)测得样品熔点为133.3℃;X射线粉末衍射原位升温附件与热重-差热联用仪(TG-DTA)联合考察样品的热稳定性,如图3和图4所示,图3的TG曲线在167.8~193.5℃出现第一个失重台阶,失重量10.5%,为样品失去第一个乙醇胺(第一阶段),193.5~226.9℃出现第二个失重台阶,失重7%,为样品失去第二个乙醇胺(第二阶段),在242.5℃时失重量为21.1%,两个乙醇胺完全失去,
艾曲波帕二乙醇
Fig.3 TG-DTA diagram of eltrombopag钢琴品牌排行榜
diethanolamine cry
stal formⅠ胺分解为艾曲波帕,DTA曲线在183.2和218.7℃有两个吸热峰,分别对应于两个阶段,验证了TG分析的结果,图4中180℃的衍射曲线与26℃的相比,1位置衍射峰向左发生偏移,2位置衍射峰强度降低,发生分裂,200和240℃的衍射曲线与180℃的相比,3位置左侧出现一个新的衍射峰,4和5位置部分旧峰消失,出现新的衍射峰,说明样品晶型结构发生改变,与TG-D
TA分析结果一致,两种仪器检测结果相互验证。本文所建立的定性分析方法[
4
]和热稳定性考察结果准确全面,为仿制药的生产鉴定提供了较为全面的参考依据
。
Fig.4 PXRD temperature-changing
喧哗patterns ofeltrombopag
diethanolamine crystal formⅠReferences祁望
[1] Chiou T J,Chang Y F,Wang M C,et al.Trans
lational Research the Journal of Laboratory &Clinical Medicine,2015,166(6):750.[2] Mondelli M U.Journal of Hepatology
,2008,48(6):1032.[3] Lexik E,Serric H,Mendorf T,et al.Polycrystalline Forms of Eltrombopag and Eltrombopag
Salts and Their Preparation Methods:China,102448942[P],2012-05-
09.Structural and Thermal Stability
Analysis of a Platelet Receptor AgonistEltrombopag
DiethanolamineMA Yu-xuan,DAI Su-yun,WANG Na,WANG Bing,LI Gang
*
小巧玲珑造句Test &Analysis Center,Nanjing
Normal University,Nanjing 210023,ChinaAbstract Eltrombopag
diethanolamine,a nonpeptide and small molecular thrombopoietin receptor agonist,has been approvedfor the treatment of patients with cirrhosis associated with hepatitis and immune thrombocytopenic purpura.Here,we have suc-cessfully elucidated its structure by using
elemental analyses(EA),mass spectra(MS),nuclear magnetic resonance spectra(NMR),scanning electron microscopy(SEM),fourier transform infrared spectroscopy(FTIR),differential scanning calorime-try(DSC)and powder X-ray diffraction(PXRD).The stability of the form-Ⅰof el
trombopag diethanolamine was investigatedby using thermogravimetric and differential thermal analyses(TG-DTA)and powder X-ray
diffraction with in-situ high tempera-ture accessories.The results of EA,MS,NMR are consistent with the molecular structure of eltrombopag diethanolamine.TheSEM examination indicates that the morphological of it possess a particle shape,a lamellar shape and a relatively clean surface.The DSC thermogram of it showed a desolvation peak starting
at 133.3℃.The PXRD patterns of it indicated peaks at 2θ=5.59°,7.35°,8.16°,11.26°,13.81°,17.02°,22.81°,26.55°.It is seem that a few unique peaks and can be used for the iden-tification.In the heating process,the result observed
in the PXRD analysis and TG-DTA curve that two weight losses happenedwithin the range 167.8~193.5℃and 193.5~226.9℃and the crystal structure was changed in the meantime.The above anal-ysis providing a relatively
comprehensive reference for the production and identification of generic drugs.Keywords The form-I of eltrombopag diethanolamine;Qualitative analysis;X-ray powder diffraction;Thermal analysis*Corresponding
author(Received Mar.30,2020;accep
ted Jul.10,2020) 0
92光谱学与光谱分析 第40卷
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