[1]Suter;Lawson;Smith[JournaloftheAmericanChemicalSociety,1939,vol.61,p.161,164]CurrentPatentAssignee:MERCK&COINC-US2334229,1938,A
[1]Patent:WO2011/53697,2011,A1.Locationinpatent:Page/Pagecolumn90-91
[2]EuropeanJournalofMedicinalChemistry,2015,vol.89,p.524-539
[3]JournalofMedicinalChemistry,1996,vol.39,p.4261-4274
[4]Patent:US2002/4608,2002,A1