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
From the resulting compound (144 mg, 0.500 mmol), through condensation with 3-hydroxyquinoxaline-2-carboxylic acid (95.1 mg, 0.500 mmol), a mixture containing the desired title compound was afforded. Repurification by preparative TLC afforded the desired title compound (28.5 mg, yield 13%) as a yellow solid. 1H-NMR (DMSO-d6, 400 MHz) delta: 12.85 (1H, brs), 9.79 (1H, brs), 7.88 (1H, d, J=8.2 Hz), 7.68-7.55 (1H, m), 7.41-7.30 (2H, m), 7.17-7.08 (2H, m), 7.07-6.98 (2H, m), 4.59 (1H, m), 4.28 (2H, d, J=4.6 Hz), 4.00-3.20 (4H, m), 2.04-1.85 (2H, m), 1.71-1.48 (2H, m). IR (KBr) cm-1: 2950, 1695, 1650, 1620, 1505, 1210. MS (ESI, m/z): 425 (M+H)+. HRMS (ESI, m/z): 425.1626 (Calcd for C22H22FN4O4: 425.1625).
1204-75-7, 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