With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.1029413-55-5,tert-Butyl 4-(4-amino-1H-pyrazol-1-yl)piperidine-1-carboxylate,as a common compound, the synthetic route is as follows.
Compound 48-b (250 mg, 0.68 mmol) and compound 32-c (181 mg, 0.68 mmol) were dissolved in N,N-dimethylformamide (3 mL), and potassium carbonate (281 mg, 2.37 mmol), 2-dicyclohexylphosphino-2?,6?-diisopropoxy-1,1?-biphenyl (58 mg, 0.13 mmol) and tris(dibenzylideneacetone)dipalladium (136 mg, 0.24 mmol) were added. The reaction solution was heated to 110 C. and stirred for 16 hours under nitrogen gas atmosphere. After cooling to room temperature, the reaction mixture was partitioned between ethyl acetate (100 mL) and water (100 mL). The organic phase was dried over anhydrous sodium sulfate, filtered and the filtrate was concentrated under reduced pressure. The residue was purified by silica gel TLC preparative plate (petroleum ether: ethyl acetate=1:1) to give 48-a as a pale yellow solid (75 mg, yield 18%). LC-MS (ESI): m/z=599[M+H]+.
1029413-55-5, As the paragraph descriping shows that 1029413-55-5 is playing an increasingly important role.
Reference£º
Patent; GUANGZHOU MAXINOVEL PHARMACEUTICALS CO., LTD.; XU, Zusheng; ZHANG, Nong; WANG, Tinghan; SUN, Qingrui; WANG, Yuguang; (90 pag.)US2018/208604; (2018); A1;,
Piperidine – Wikipedia
Piperidine | C5H11N – PubChem