[1]Lukesetal.[CollectionofCzechoslovakChemicalCommunications,1957,vol.22,p.1173,1177]Burtner;Brown[JournaloftheAmericanChemicalSociety,1947,vol.69,p.630,631]
[2]CurrentPatentAssignee:ASTRAZENECAPLC-US2009/281087,2009,A1Locationinpatent:Page/Pagecolumn15
[1]Burtner;Brown[JournaloftheAmericanChemicalSociety,1947,vol.69,p.630,631]
[1]Ruddy;Bishop[JournaloftheAmericanChemicalSociety,1952,vol.74,p.1919]
[1]Lukesetal.[CollectionofCzechoslovakChemicalCommunications,1957,vol.22,p.1173,1177]