548762-66-9, (2S,5R)-tert-Butyl 2,5-dimethylpiperazine-1-carboxylate is a piperazines compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated
(b) (2S,5R)-4-[5-(4-Bromo-3-trifluoromethoxy-phenylcarbamoyl)-pyridin-2-yl]-2,5-dimethyl-piperazine-1-carboxylic acid tert-butyl ester The product of the previous step (3.86 g, 10.2 mmol) (2S,5R)-2,5-dimethyl-piperazine-1-carboxylic acid tert-butyl ester (2.62 g, 12.2 mmol) and N,N-diisopropylethylamine (5.32 mL, 30.5) was dissolved in DMSO (12 mL). The reaction mixture heated at 120 C. for 3 h, diluted with EtOAc (100 mL), washed with water, and saturated NH4Cl, water, and brine. The reaction mixture was evaporated to about 40% volume and 3 M HCl in cyclopentyl methyl ether (4.24 mL, 12.7 mmol) was added slowly. Seeds from a previous run at smaller scale were added and the reaction mixture was stirred for 2 days and filtered to provide the HCl salt of the title intermediate (5.15 g, 83% yield). HPLC method C: Retention time=21.1 min
548762-66-9, As the paragraph descriping shows that 548762-66-9 is playing an increasingly important role.
Reference：
Patent; THERAVANCE, INC.; US2012/114600; (2012); A1;,
Piperazine – Wikipedia
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