With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.31166-44-6,1-Cbz-Piperazine,as a common compound, the synthetic route is as follows.
General procedure: N-Cbz piperazine (0.55 g, 2.48 mmol, 1 eq) and carboxylic acid 8c?g (2.48 mmol, 1 eq) were dissolved in dry DMF (10 mL), the reaction mixture flushed with argon and cooled to 0 ¡ãC. N-methyl morpholine (NMM; 7.44 mmol,3 eq), hydroxybenzotriazole hydrate (HOBt; 2.98 mmol,1.2 eq) and 1-ethyl-3-(3-dimethylaminopropyl)carbodiimidehydrochloride HCl salt (EDC; 3.22 mmol, 1.3 eq) were slowly added. The reaction mixture was stirred under argon atmosphere for 5 h at 0 ¡ãC and an additional 15 h at room temperature. DMF was evaporated under reduced pressure and the residue redissolved in dichloromethane (10 mL).The dichloromethane phase was washed with H2O (1 x 10 mL), a 1 M HCl solution (3 x 10 mL), saturated aqueous NaHCO3 solution (3 9 10 mL), brine (1 x 20 mL), dried over Na2SO4, filtered, and the solvent evaporated under reduced pressure. The crude product was purified by flash column chromatography using ethyl acetate/hexane solvents as eluents to afford compounds 9c?g.
31166-44-6, As the paragraph descriping shows that 31166-44-6 is playing an increasingly important role.
Reference£º
Article; Juki?, Marko; Frlan, Rok; Chan, Fiona; Kirby, Robert W.; Madge, David J.; Tytgat, Jan; Peigneur, Steve; Anderluh, Marko; Kikelj, Danijel; Medicinal Chemistry Research; vol. 24; 6; (2015); p. 2366 – 2380;,
Piperazine – Wikipedia
Piperazines – an overview | ScienceDirect Topics