乙基喹噁啉-6-羧酸

6-喹喔啉甲酸

ethyl 2,3-dichloroquinoxaline-6-carboxylate

5(6)-乙氧甲酰-2-(4-羟基苯基)-苯并咪唑

ethyl 2,3-dioxo-1,4-dihydroquinoxaline-6-carboxylate