Opicapone Impurity 44

2- ((((Z) -amino (2,5-dichloro-4,6-dimethyl-1-oxidopyridin-3-yl) methylene) amino) oxy) -5-chloro-3- ((Z) -N'-hydroxycarbamimidoyl) -4,6-dimethylpyridine 1-oxide

2- ((((Z) -amino (2,5-dichloro-4,6-dimethyl-1-oxidopyridin-3-yl) methylene) amino) oxy) -5-chloro-3- ((Z) -N'-hydroxycarbamimidoyl) -4,6-dimethylpyridine 1-oxide