英文别名4-(3-(2,5-dichloro-4,6-dimethylpyridin-3-yl)-1,2,4-oxadiazol-5-yl)-2-methoxy-6-nitrophenol; Phenol, 4-[3-(2,5-dichloro-4,6-dimethyl-3-pyridinyl)-1,2,4-oxadiazol-5-yl]-2-methoxy-6-nitro-; Opicapone Impurity 17; Opicapone Impurity 16; Opicapone Impurity N1; 5-[3-(2,5-dichloro-4,6-dimethyl-pyridin-3-yl)-[1,2,4]oxadiazol-5-yl]-2-hydroxy-3-methoxy-1-nitrobenzene 
