1. During its dissolving process, 3, 5-substituted oxazolidone is first dissolved in acid solvent completely and other solvent is then added to compound clarified solution.
   该方法特异性高，可快速溶解，不需要特殊或额外仪器，成本低廉，便于推广应用，主要解决溶解难和成本比较高的问题，对于3，5-取代�唑烷酮类化合物的生产和质量检测有重要意义；

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