With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.940890-90-4,(S)-tert-Butyl 3-((methylsulfonyl)oxy)piperidine-1-carboxylate,as a common compound, the synthetic route is as follows.
3-(4-phenoxyphenyl) lH-pyrazolo [3,4-d] pyrimidin-4-amine (1.14g, 3.76mmol)was dissolved DMF (30mL) in, and then the reaction solution was added (S)-tert-butyl 3-((methylsulfonyl) oxy) piperidine-1-carboxylate (4.2g, 15.04mmol), cesium carbonate(0.64mL, 8.21 mmol), 4- dimethylaminopyridine pyridine (3.67g, 11.28mmol). Was stirredat 90 deg.] C 8h, the reaction was completed, distilled under reduced pressure of DMF,and extracted with dichloromethane (150mL ¡Á 3), brine (60mL), dried over anhydroussodium sulfate, the solvent was distilled off under reduced pressure, the crude productwas silica gel column Analysis of separation and purification (methylene chloride /methanol (V / V) = 40/1), to give the product (1.28g, 70percent)., 940890-90-4
The synthetic route of 940890-90-4 has been constantly updated, and we look forward to future research findings.
Reference£º
Patent; Guangdong HEC Pharmaceutical Co., Ltd; LIU, BING; BAI, SHUN; ZHANG, YINGJUN; ZHENG, CHANGCHUN; YANG, TIPING; ZHOU, YOUBAI; (33 pag.)CN105399756; (2016); A;,
Piperidine – Wikipedia
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