[1]Patent:US2538107,1946,
[1]JournaloftheAmericanChemicalSociety,1947,vol.69,p.2582,2585
[1]CurrentPatentAssignee:ABBVIEINC-WO2008/124582,2008,A1Locationinpatent:Page/Pagecolumn131-132
[2]CurrentPatentAssignee:BRISTOL-MYERSSQUIBBCO-WO2008/124757,2008,A1Locationinpatent:Page/Pagecolumn54-55
[3]CurrentPatentAssignee:SUNPHARMACEUTICALINDUSTRIESLIMITED-WO2008/31227,2008,A1Locationinpatent:Page/Pagecolumn24
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[5]CurrentPatentAssignee:MERCK&COINC-US6303637,2001,B1
[6]CurrentPatentAssignee:SANOFI-US5780466,1998,A
[7]CurrentPatentAssignee:CHINAPHARMACEUTICALUNIVERSITY-CN113248449,2021,ALocationinpatent:Paragraph0088-0091