差示扫描量热法
溶解度
生物利用度
化学
溶解
核化学
傅里叶变换红外光谱
扫描电子显微镜
水溶液
粉末衍射
甲磺酸
材料科学
化学工程
有机化学
结晶学
工程类
复合材料
物理
热力学
生物
生物信息学
作者
Xiaoting Li,Wei Xu,Qikun Jiang,Fangda Chi,Qian Liu,Tianhong Zhang
标识
DOI:10.1080/03639045.2016.1225755
摘要
The aim of the present study was to evaluate the feasibility of using the methanesulfonic salt of arbidol in order to improve its aqueous solubility and thus oral bioavailability. Arbidol mesylate (AM) was synthesized and then characterized using nuclear magnetic resonance spectroscopy (NMR), infrared spectroscopy (IR), powder X-ray diffraction (PXRD), differential scanning calorimetry (DSC) and scanning electron microscopy (SEM), and its apparent solubility and octanol–water partition coefficient were also studied. The results of NMR, IR, PXRD, SEM and DSC tests confirmed the salt formation. The apparent solubility of AM in water was 32-fold higher than that of the commercial product. A superior pH-dependent profile and an improved dissolution rate of AM were obtained in a variety of solutions with different pH values. In addition, AM exhibited a relatively higher peak plasma concentration (1460 versus 1297 ng/mL) and an increased AUC0–t (2475 versus 1277 ng/mL × h) when comparing with the commercial product, indicating the improved bioavailability of the drug. This study suggests that AM may be able to improve the therapeutic efficacy of arbidol, which rendering it to be a promising candidate for further development.
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