6283-81-4
3-氧代-3-(3-吡啶基)丙酸乙酯
+
108-46-3
间苯二酚
→
109512-76-7
7-羟基-4-(3-吡啶)香豆素
179113-47-4
7-bromo-4-pyridin-3-ylchromen-2-one