[1]Parke;Williams[JournaloftheChemicalSociety,1950,p.1760,1763]
[1]Sims[JournaloftheChemicalSociety,1958,p.44,46]
[1]Thorpe;Williams[BiochemicalJournal,1941,vol.35,p.61,64]
[1]CurrentPatentAssignee:BASFSE;Novartis(w/oSandoz);NOVARTISAG-DE1803084,1969,A1[Chem.Abstr.,1969,vol.71,#91119][Chem.Abstr.,1969,vol.71,#91119]
[1]Yagi,Y.[BulletinoftheChemicalSocietyofJapan,1963,vol.36,p.492-500]