Autoxidation of Tetrazepam in Tablets: Prediction of Degradation Impurities from the Oxidative Behavior in Solution
作者:Boccardi Giovanni、Colette Deleuze、Michel Gachon、Giovanni Palmisano、Jean Pierre Vergnaud
DOI:10.1002/jps.2600810216
日期:1992.2
4-benzodiazepin-2,5-dione (4), resulting from cleavage of the C-C bond between the cyclohexene ring and the benzodiazepine ring. After 48 h, AIBN (2,2'-azobis[2-methyl-propanenitrile]) in acetonitrile at 40 degrees C produced qualitatively the same impurities as those observed in the stability study of tablets of 1. Other stress tests (thermal stress at 80 degrees C, heavy metal oxidation, hydrogen peroxide, acid-catalyzed
四唑烷(1)降解的主要途径是氧化为7-氯-5-(3-酮-环己烯-1-基)-1,3-二氢-1-甲基-2H-1、4-苯并二氮杂-2 -(3)经由稳定的7-氯-5-(3-氢过氧-环己烯-1-基)-1,3-二氢-1-甲基-2H -1,4苯并二氮杂-2--2-(2)。次要降解产物为7-氯-5-(1,2-环氧环己-1-基)-1,3-二氢-1-甲基-2H-1、4-苯并二氮杂-2--2-(5)和7-氯-1,3-二氢-1-甲基-2H-1,4-苯并二氮杂-2,5-二酮(4),是由于环己烯环和苯并二氮杂环之间的CC键断裂所致。48小时后,乙腈中40℃下的AIBN(2,2'-偶氮双[2-甲基丙腈])产生的定性杂质与1片片剂的稳定性研究中观察到的杂质相同。 80摄氏度,重金属氧化,过氧化氢,