作者:Carlos H. de Moura Oliveira、Cristiane C. de Melo、Antonio C. Doriguetto
DOI:10.1039/c9nj00586b
日期:——
absorption. To overcome such limitations and especially to increase its solubility, this study has a main purpose of the development of novel optimized crystalline forms of SMZ. Herein, two crystalline salts of SMZ (SMZBr and SMZNO3) have been synthesized from solution crystallization and characterized using X-ray (single and powder), spectroscopic (infrared, FT-IR) and thermal (DSC and TGA) techniques
磺胺甲基异恶唑(SMZ)是IV级生物制药分类系统(BCS)的合成广谱抗生素,具有低溶解性和渗透性,在口服制剂中可能需要更高的药物剂量才能促进预期的全身吸收。为了克服这些局限性,尤其是增加其溶解度,本研究的主要目的是开发新型优化的SMZ结晶形式。在此,SMZ的两种结晶盐(SMZBr和SMZNO 3)是由溶液结晶合成的,并使用X射线(单粉和粉末),光谱(红外,FT-IR)和热(DSC和TGA)技术进行了表征。此外,在纯水中进行了溶解度研究,并将其与SMZCl盐和SMZ晶型I进行了比较。观察到,SMZBr盐在水介质中显示出相稳定性,并且与SMZCl盐和SMZ晶型I相比显示出更高的溶解度。采用定性石蕊试纸测试以验证热药物降解过程中释放的挥发物。