With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.1214196-85-6,1-(tert-Butoxycarbonyl)piperazine-2-carboxylic acid,as a common compound, the synthetic route is as follows.
A suspension of 1-Boc-piperazine-2-carboxylic acid (9, 2.0 g, 8.69 mmol), EDCI (1.99 g, 10.42 mmol) and DMAP (0.32 g,2.61 mmol) in MeOH/CH2Cl2 (1:1) was stirred at 40 C for 1.5 hr, then the resulting solution was cooled down to room temperature and stirred for another 4 hrs. After removing the solvent, the residue was dissolved in CH2Cl2. The solution was washed with H2O (50 mL x 3). The combined aqueous was re-extracted with CH2Cl2 (40 mL x 3). All of the organics were combined, washed with 1 N NaHCO3 (50 mL x 3) and brine, and finally dried over Na2SO4. The product, a colorless liquid, was purified via flash chromatography, eluted with CH2Cl2 then 10% MeOH/CH2Cl2. Rf= 0.7 (10% MeOH/CH2Cl2, stained by phosphomolybdic acid (PMA)); yield – 84%, 1214196-85-6
As the paragraph descriping shows that 1214196-85-6 is playing an increasingly important role.
Reference：
Article; Zhao, Huanyu; Prosser, Anthony R.; Liotta, Dennis C.; Wilson, Lawrence J.; Bioorganic and Medicinal Chemistry Letters; vol. 25; 21; (2015); p. 4950 – 4955;,
Piperazine – Wikipedia
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