[1]CurrentPatentAssignee:MERCK&COINC-US2334229,1938,A
[2]Kindleretal.[ChemischeBerichte,1953,vol.86,p.501,506]
[3]CurrentPatentAssignee:JIANGSUHENGRUIMEDICINECO.,LTD.-EP3907218,2021,A1
[1]Suter;Lawson;Smith[JournaloftheAmericanChemicalSociety,1939,vol.61,p.161,164]
[1]Suter;Lawson;Smith[JournaloftheAmericanChemicalSociety,1939,vol.61,p.161,164]CurrentPatentAssignee:MERCK&COINC-US2334229,1938,A
[1]Suter;Lawson;Smith[JournaloftheAmericanChemicalSociety,1939,vol.61,p.161,164]