[1]Elderfieldetal.[JournalofOrganicChemistry,1958,vol.23,p.435,442]Bergstrom;Paterson[JournalofOrganicChemistry,1945,vol.10,p.479,480]
[2]CurrentPatentAssignee:MERCK&COINC-WO2004/46133,2004,A1Locationinpatent:Page23
[1]Elderfieldetal.[JournalofOrganicChemistry,1958,vol.23,p.435,442]