A critical assessment on stability behaviour of Vorinostat using LC-MS-QTOF with H/D exchange and NMR
作者:Naveen Chandrasekar、Kalyani Sharma、Sonali Jain、Muktabai Shinde、Girish Patil、Ravi P. Shah
DOI:10.1016/j.jpba.2023.115687
日期:2023.11
degradants were identified as 7-amino-N-phenylheptanamide, 8-hydrazineyl-8-oxo-N-phenyloctanamide, 8-oxo-8-(phenylamino)octanoic acid, 8-oxo-8-(2-(7-oxo-7-(phenylamino)heptyl)hydrazineyl)-N-phenyloctanamide, 8,8′-(1-hydroxyhydrazine-1,2-diyl)bis(8-oxo-N-phenyloctanamide), and N1-((8-oxo-8-(phenylamino)octanoyl)oxy)-N8-phenyloctanediamide. The mechanistic explanation for the formation of each degradant in
伏立诺他是美国 FDA 批准的第一个用于治疗皮肤 T 细胞淋巴瘤的HDAC 抑制剂。将伏立诺他暴露于 ICH 推荐的水解(酸、碱和中性)、氧化、热和光解应激条件下,以了解降解行为。开发并验证了稳定性指示 LC 方法,用于分离和鉴定强制降解产物。在不同的胁迫条件下,通过 LC-HRMS、MS/MS 和氢-氘交换质量研究鉴定并表征了六种降解物。发现伏立诺他对酸性和碱性环境高度敏感。相反,该药物在热和光解条件下在固态下是稳定的,而当向乙腈-水中溶解状态的伏立诺他提供光解应力时,发现该药物具有适度的稳定性。降解产物被鉴定为7-氨基-N-苯基庚酰胺、8-肼基-8-氧代-N-苯基辛酰胺、8-氧代-8-(苯氨基)辛酸、8-氧代-8-(2-(7-氧代) -7-(苯氨基)庚基)肼基)-N-苯基辛酰胺、8,8′-(1-羟基肼-1,2-二基)双(8-氧代-N-苯基辛酰胺)和N1-((8-氧代) -8-(苯氨基)