1204-75-7, 3-Oxo-3,4-dihydroquinoxaline-2-carboxylic acid is a quinoxaline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated
The resulting compound (228 mg, 0.682 mmol) was condensed with 3-hydroxyquinoxaline-2-carboxylic acid (133 mg, 0.682 mmol) to afford the desired title compound (174 mg, yield 52%) as a pale yellow solid. 1H-NMR (DMSO-d6, 400 MHz) delta: 12.84 (1H, brs), 9.54 (1H, brs), 7.90-7.83 (1H, m), 7.65 (1H, dd, J=8.6 Hz, 8.2 Hz), 7.40 (1H, d, J=7.4 Hz), 7.38 (1H, d, J=8.6 Hz), 7.35-7.27 (2H, m), 7.27-7.07 (1H, m), 4.99 (1H, m), 4.59 (1H, m), 4.02-3.78 (2H, m), 3.57-3.20 (2H, m), 2.09-1.49 (6H, m), 0.92 (3H, t, J=7.0 Hz). IR (KBr) cm-1: 2940, 1685, 1640, 1505, 1210. MS (ESI, m/z): 471 (M+H)+. HRMS (ESI, m/z): 471.1848 (Calcd for C24H25F2N4O4: 471.1844).
As the paragraph descriping shows that 1204-75-7 is playing an increasingly important role.
Reference£º
Patent; Daiichi Sankyo Company, Limited; EP2258697; (2010); A1;,
Quinoxaline – Wikipedia
Quinoxaline | C8H6N2 | ChemSpider