[1]Patent:US2886592,1957,
[1]CurrentPatentAssignee:FAMAHETIANJINTECH-CN109761830,2019,ALocationinpatent:Paragraph0009;0032;0033
[2]Evans,DavidA.;Katz,JeffreyL.;West,TheodoreR.[TetrahedronLetters,1998,vol.39,#19,p.2937-2940]
[1]Patent:CN109761830,2019,A.Locationinpatent:Paragraph0009;0034;0035
[1]Patent:CN109761830,2019,A
[1]Patent:CN109761830,2019,A