With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.76003-30-0,1-Boc-2-methyl-3-oxopiperazine,as a common compound, the synthetic route is as follows.,76003-30-0
Step 2: Synthesis of iert-butyl 3-ethoxy-2-methyl-5,6-dihydropyrazine-l(2H)-carboxylate lbTo a solution of 1.2b (24 g, 87 mol) in anhydrous DCM (250 mL) at 0 C under N2 atmosphere was added a pre-made solution of triethyloxonium tetrafluoroborate (19.92 g, 105 mmol) in anhydrous DCM (50 mL). The reaction mixture was allowed to warm to RT and stirred for 30 min whereupon saturated solution of NaHC03 (400 mL) was added. The extracted aqueous layer was then washed with DCM (200 ml) and the combined organic extracts were subsequently washed with brine (300 mL), dried over MgS04, filtered and further dried in vacuo to obtain the title intermediate lbas colorless oil. (20.7 g, 98 ).LCMS: P = 98 , retention time = 1.8 min, (M+H+H20)+: 261; 1H-NMR (CDC13): delta 4.30 (br, 1H), 4.11-4.01 (m, 2H), 3.84 (br, 1H), 3.48-3.40 (m, 2H), 2.90 (br, 1H), 1.32 (d, J = 6.9, 3H), 1.26 (t, J = 7.1, 3H).
76003-30-0 1-Boc-2-methyl-3-oxopiperazine 12638300, apiperazines compound, is more and more widely used in various fields.
Reference£º
Patent; EUROSCREEN S.A.; HOVEYDA, Hamid; DUTHEUIL, Guillaume; FRASER, Graeme; ROY, Marie-Odile; EL BOUSMAQUI, Mohamed; BATT, Frederic; WO2013/50424; (2013); A1;,
Piperazine – Wikipedia
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