Article(id=1218263850504340402, tenantId=1146029695717560320, journalId=1189982191388893191, issueId=1218263840752583393, articleNumber=null, orderNo=null, doi=10.16438/j.0513-4870.2017-0047, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1485273600000, receivedDateStr=2017-01-25, revisedDate=1489593600000, revisedDateStr=2017-03-16, acceptedDate=null, acceptedDateStr=null, onlineDate=1768386336207, onlineDateStr=2026-01-14, pubDate=1497196800000, pubDateStr=2017-06-12, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1768386336207, onlineIssueDateStr=2026-01-14, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1768386336207, creator=13701087609, updateTime=1768386336207, updator=13701087609, issue=Issue{id=1218263840752583393, tenantId=1146029695717560320, journalId=1189982191388893191, year='2017', volume='52', issue='6', pageStart='837', pageEnd='1018', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1768386333882, creator=13701087609, updateTime=1768386588756, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1218264909809373924, tenantId=1146029695717560320, journalId=1189982191388893191, issueId=1218263840752583393, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1218264909809373925, tenantId=1146029695717560320, journalId=1189982191388893191, issueId=1218263840752583393, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=971, endPage=976, ext={EN=ArticleExt(id=1218263850965713853, articleId=1218263850504340402, tenantId=1146029695717560320, journalId=1189982191388893191, language=EN, title=Studies on the degradation impurity of linezolid tablets by UFLC-MS/MS, columnId=1218263843231420822, journalTitle=Acta Pharmaceutica Sinica, columnName=ORIGINAL ARTICLES·Pharmaceutical Analysis, runingTitle=null, highlight=null, articleAbstract=
A method of ultra flow liquid chromatography-tandem mass spectrometry (UFLC-MS/MS) was developed to elucidate the impurity of linezolid tablets. Linezolid was subjected to forced degradation under hydrolytic (acid, base and neutral), oxidative, photolytic and thermal. The structure identification of the degradation products and the fragmentation patterns for the related impurities were analyzed. A total of four degradation impurities were characterized, impurity 1 is (S)-1-amino-3-((3-fluoro-4-morpholinophenyl)amino)propan-2-ol, impurity 2 is (S)-4-(4-(5-(acetamidomethyl)-2-oxo-oxazolidin-3-yl)-2-fluorophenyl)morpholine 4-oxide, impurity 3 is (S)-5-(aminomethyl)-3-(3-fluoro-4-morpholinophenyl)oxazolidin-2-one, impurity 4 is (R)-N-(3-((3-fluoro-4-morpholinophenyl)amino)-2-hydroxypropyl)acetamide. Acid degradation induced impurity 3 and impurity 4, base degradation induced impurity 1 and impurity 4, oxidation degradation induced impurity 2, hydrolysis degradation induced impurity 4. The study also determined calibration factor using impurity references, and the calibration factors were found to be 1.3, 1.4, 0.9 and 1.1, respectively. The toxicity of the degradation impurities was predicted by web-based prediction system. The results from this study provide an important reference in quality control and evaluation of linezolid.
, correspAuthors=Chen MA, authorNote=null, correspAuthorsNote=null, copyrightStatement=Copyright ©2017 Acta Pharmaceutica Sinica. All rights reserved., copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, authorCompany=null, fund=null, authors=null, authorsList=Yin-ping LEI, Bo JIN, Tong LI, Ting-ting ZHANG, Chen MA), CN=ArticleExt(id=1218263853855588357, articleId=1218263850504340402, tenantId=1146029695717560320, journalId=1189982191388893191, language=CN, title=UFLC-MS/MS法研究利奈唑胺片强制降解杂质, columnId=1218263843403387291, journalTitle=药学学报, columnName=研究论文·药物分析, runingTitle=null, highlight=null, articleAbstract=
采用UFLC-MS/MS技术对利奈唑胺片剂的杂质进行了研究,测定了利奈唑胺片剂的有关物质,推断了其在酸、碱、氧化、水解等降解条件下的降解杂质结构,并对杂质的质谱裂解规律与途径进行了分析与归纳。本文共推定了4个杂质,分别为杂质1(S)-1-氨基-3-[(3-氟-4-吗啉基苯基)氨基]-2-丙醇、杂质2(S)-5-(乙酰胺甲基)-3-(3-氟-4-氧代吗啉基苯基)噁唑烷酮、杂质3(S)-5-(氨甲基)-3-(3-氟-4-吗啉基苯基)噁唑烷酮和杂质4(R)-N-[3-[(3-氟-4-吗啉基苯基)氨基]-2-羟基丙基]乙酰胺。其中酸降解产生杂质3和杂质4,碱降解产生杂质1和杂质4,氧化降解产生杂质2,水解降解产生杂质4;同时测定了杂质1~4的校正因子,分别为1.3、1.4、0.9和1.1,并采用计算机辅助化合物毒性预测系统对4个降解杂质进行了毒性预测。该研究结果可为利奈唑胺片的质量控制与评价提供参考。
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Chromatograms of sample solution and degradation solutions. a: Linezolid; b: Hydrolysis destruction; c: Acid destruction; d: Oxidation destruction; e: Base destruction. Peaks 1-4: Impurity 1-4
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The MS/MS spectra of the degradation impurities. A-D: Impurity 1-4
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The plausible fragmentation pathway of impurity 1
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The plausible fragmentation pathway of impurity 2
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The plausible fragmentation pathway of impurity 3
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The plausible fragmentation pathway of impurity 4
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The regression equation and calibration factor of linezolid and impurities
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