4-(2,6-difluorobenzamido)-3'-(5,5-dimethyl-4-oxo-4,5-dihydroisoxazol-3-yl)-[1,1'-biphenyl]-2-carboxylic acid
ethyl 4-(2,6-difluorobenzamido)-3'-(5,5-dimethyl-4-oxo-4,5-dihydroisoxazol-3-yl)-[1,1'-biphenyl]-2-carboxylate
ethyl 2-bromo-5-(2,6-difluorobenzamido)benzoate
ethyl 2-bromo-5-(tert-butoxycarbonylamino)benzoate