Process-Related Impurities of Pazopanib

Article abstract of DOI:10.1021/acs.oprd.9b00117

The main target of this study was to synthesize reference compounds for HPLC analysis of impurities, produced in Pazopanib synthesis. It is highly desirable that impurity standards are made available to help in developing an HPLC control method that could be suitable for use in the industrial process. To the best of our knowledge, most of these impurities are not commercially available and no synthetic methods have been reported. Potential impurities were synthesized, and their structures were established by various spectroscopy techniques.