[1]Elslager,E.F.etal.[JournalofHeterocyclicChemistry,1972,vol.9,p.759-773]
[1]CurrentPatentAssignee:TAKEDAPHARMACEUTICALCOMPANYLIMITED-WO2007/75847,2007,A2Locationinpatent:Page/Pagecolumn109-111
[2]Elslager,E.F.etal.[JournalofHeterocyclicChemistry,1972,vol.9,p.759-773]
[1]Elslager,E.F.etal.[JournalofHeterocyclicChemistry,1972,vol.9,p.759-773]
[1]CurrentPatentAssignee:MERCK&COINC-US5451677,1995,A
[1]CurrentPatentAssignee:TAKEDAPHARMACEUTICALCOMPANYLIMITED-WO2007/75847,2007,A2Locationinpatent:Page/Pagecolumn109-111