antagonist salt of cd80. the present invention relates to the choline salt of the cd80 antagonist compound 4- (6-fluoro-3-oxo-1,3-dihydro-pyrazolo [4,3-c] cinolin2-yl) -n- (2, 2-difluoro-ethyl) -benzamide (i) has good aqueous stability and is therefore convenient for pharmaceutical use.sal de antagonista de cd80. a presente invenção refere-se ao sal de colina do composto antagonista de cd80 4-(6-fluoro-3-oxo-1,3-dihidro-pirazolo[4,3-c]cinolin2-il)-n-(2,2-difluoro-etil)-benzamida (i)temboaestabilidadeaquosaeé,logo,conveniente para uso farmacêutico.
