With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.169447-70-5,(S)-tert-Butyl 2-methylpiperazine-1-carboxylate,as a common compound, the synthetic route is as follows.
169447-70-5, To a stirred solution of tert-butyl (2S)-2-methylpiperazine-1-carboxylate(1 g, 4.99 mmol, 1 equiv.) and DIEA(1.3 g, 9.99 mmol, 2 equiv.) in DMA(10 mL) was added 4,5-dibromo-2,3- dihydropyridazin-3-one (1.5 g, 5.91 mmol, 1.183 equiv.) in portions at 100 degrees C overnight. The reaction liquid was purified by reverse phase flash with the following conditions: (0292) MeCN/H2O (NH4CO3: 5%) (MeCN: 50%-95%,40 min) to afford tert-butyl (2S)-4-(5-bromo-6- oxo-1,6-dihydropyridazin-4-yl)-2-methylpiperazine-1-carboxylate(1.2g,64.39%) as a yellow solid.
The synthetic route of 169447-70-5 has been constantly updated, and we look forward to future research findings.
Reference£º
Patent; GOLDFINCH BIO, INC.; YU, Maolin; DANIELS, Matthew, H.; HARMANGE, Jean-christophe, P.; TIBBITTS, Thomas, T.; LEDEBOER, Mark, W.; WALSH, Liron; MUNDEL, Peter, H.; MALOJCIC, Goran; (860 pag.)WO2019/55966; (2019); A2;,
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