[1]Hartman,GeorgeD.;Schwering,JohnE.;Hartman,Richard,D.[TetrahedronLetters,1983,vol.24,p.1011-1014]
[1]CurrentPatentAssignee:NEKTARTHERAPEUTICS-WO2015/92819,2015,A2Locationinpatent:Paragraph0306;0307
[1]CurrentPatentAssignee:NEKTARTHERAPEUTICS-WO2015/92819,2015,A2Locationinpatent:Paragraph0311;0312