36070-83-4 
 
potassiumsaltof5-(difluoromethyl)pyrazine-2-carboxylicacid 
[1]Patent:WO2013/162065,2013,A1
667-27-6 
 
36070-83-4 
 
ethyl5-(2-ethoxy-1,1-difluoro-2-oxoethyl)pyrazine-2-carboxylate 
 
5-(ethoxycarbonyl)pyrazin-2-yl(difluoro)aceticacid 
[1]Patent:WO2013/162065,2013,A1.Locationinpatent:Paragraph0050;0051;0052
[1]Patent:EP3428155,2019,A1.Locationinpatent:Paragraph0200;0201
[1]Patent:EP3428155,2019,A1.Locationinpatent:Paragraph0194;0195