(2,5-dioxopyrrolidin-1-yl) 2-(7-hydroxy-2-oxochromen-3-yl)acetate

7-甲氧基-2-氧代-2H-1-苯并吡喃-4-乙酸

methyl 2-(7-methoxy-2-oxochromen-4-yl)acetate

2-(7-羟基-2-氧代-2H-苯并吡喃-4-基)乙酰胺

甲基(7-羟基-2-氧代-2H-苯并吡喃-4-基)乙酸酯