2-苯基巯基苯并吡喃-4-酮

5,7-dimethyl-3-phenyl-[1,2]oxazolo[3,4-d]pyrimidine-4,6-dione

7,8-二甲氧基黄酮

(4-methyl-2-oxochromen-7-yl) benzoate

[(2-oxo-1,2-diphenylethylidene)amino] benzoate