[1]Wirz,Beat;Barner,Richard;Huebscher,Joseph[JournalofOrganicChemistry,1993,vol.58,#15,p.3980-3984]
[1]CurrentPatentAssignee:SHIONOGI&CO.,LTD.-CN112300192,2021,ALocationinpatent:Paragraph0112-0115;0116-0117
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