926270-06-6 
 
915196-26-8 
 
cis-8-tert-butyl-1-oxa-2-aza-spiro4.5dec-2-ene-3-carboxylicacid(2-fluoro-5-methanesulfonylamino-phenyl)amide 
 
trans-8-tert-butyl-1-oxa-2-aza-spiro4.5dec-2-ene-3-carboxylicacid(2-fluoro-5-methanesulfonylamino-phenyl)amide 
[1]CurrentPatentAssignee:GruenenthalPharmaGmbH&Co.Kommanditgesellschaft-WO2006/136245,2006,A1Locationinpatent:Page/Pagecolumn80-81