Analyzing the synthesis route of 1204-75-7

The synthetic route of 1204-75-7 has been constantly updated, and we look forward to future research findings.

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

3-Hydroxy-2-quinoxalinecarboxylic acid (3.00 g, 15.8 mmol) was dissolved in DMF (50 mL), followed by addition of 4-dimethylaminopyridine (2.12 g, 17.4 mmol). The reaction mixture was stirred at rt until the 4-dimethylaminopyridine dissolved, at which point N,N?-disuccinimidyl carbonate (4.45 g, 17.4 mmol) was added. The reaction mixture was stirred at rt for 30 min (Check HPLC to confirm reaction completion. If the reaction was not complete, additional 0.1 eq portions of DSC were added until HPLC showed complete conversion). A soln. of N-Boc-ethylenediamine (3.04 g, 19.0 mmol) and triethylamine (2.40 g, 3.30 mL, 23.7 mmol) in DMF (10 mL) was then added, and the reaction was stirred at rt for 1 h (check HPLC for reaction completion). The reaction mixture was then poured onto a vigorously stirring soln. of 1M HCl (250 mL). The resulting precipitate was collected by vacuum filtration, washed several times with water, and dried under high-vacuum, giving compound 5 as a yellow solid (5.10 g, 97% yield)., 1204-75-7

The synthetic route of 1204-75-7 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; Ventana Medical Systems, Inc.; Belosludtsev, Yuri; DeGeer, Traci D.; French, Wendy J.; Hao, Junshan; Kelly, Brian D.; Murillo, Adrian E.; Polaske, Nathan W.; (55 pag.)US2018/186821; (2018); A1;,
Quinoxaline – Wikipedia
Quinoxaline | C8H6N2 | ChemSpider