30681-63-1
2-(3,4-dihydro-3-oxo-2(1H)-quinoxalinylidene)-Acetic acid ethyl ester
→
~67%
88051-09-6
ethyl 2-bromo-2-(3-oxo-4H-quinoxalin-2-yl)acetate
62235-61-4
3-(溴甲基)喹喔啉-2(1H)-酮
14003-34-0
3-甲基-3-喹诺醇