6-acetamido-3',6'-bis(dimethylamino)spiro[1,3-dihydroisobenzofuran-1,9'-xanthen]-3-one

4-硝基苯酐

4-硝基邻苯二甲酸

4-二甲基氨基-2-羟基-2’-甲氧羰基-5’-硝基二苯甲酮

methyl 4-amino-2-(4-(dimethylamino)-2-hydroxybenzoyl)benzoate