Related Products of 35100-92-6, In the next few decades, the world population will flourish. As the population grows rapidly and people all over the world use more and more resources, all industries must consider their environmental impact. 35100-92-6, name is 1,5-Dimethyl-1H-pyrazol-3-amine belongs to pyrazoles-derivatives compound, it is a common compound, a new synthetic route is introduced below.
Example 2 6-(4-(5-chloro-2-(1,5-dimethyl-1H-pyrazol-3-yl)amino)pyrimidin-4-ylamino)piperidin-1-yl)nicotinonitrile To a solution of 6-(4-((2,5-dichloropyrimidin-4-yl)amino)piperidin-1-yl)nicotinonitrile (100 mg, 0.286 mmol) in n-butanol (5 mL) was added 1,5-dimethyl-1H-pyrazol-3-amine (95 mg, 0.859 mmol) and TFA (212 muL, 2.86 mmol). The reaction mixture was stirred at 120 C. in a sealed tube for 24 hours then cooled to room temperature and diluted with EtOAc (50 mL), washed with water (15 mL*3) followed by brine (20 mL). The organic layer was dried over anhydrous Na2SO4, filtered and concentrated in vacuo. The residue was purified by silica gel column chromatography (DCM/EA/MeOH (v/v/v)=25/5/1) to give the title compound as a white solid (53 mg, yield 44%). LC-MS (ESI, pos. ion) m/z: 423.7 [M+H]+; 1H NMR (300 MHz, DMSO-d6) delta (ppm): 9.17 (s, 1H), 8.49 (d, J=2.3 Hz, 1H), 7.87 (s, 1H), 7.84 (dd, J=9.1, 2.3 Hz, 1H), 7.00 (d, J=9.2 Hz, 1H), 6.78 (d, J=7.8 Hz, 1H), 6.35 (s, 1H), 4.57-4.51 (m, 2H), 4.32-4.19 (m, 1H), 3.60 (s, 3H), 3.07-2.99 (m, 2H), 2.22 (s, 3H), 2.00-1.95 (m, 2H), 1.65-1.52 (m, 2H).
The synthetic route of 1,5-Dimethyl-1H-pyrazol-3-amine has been constantly updated, and we look forward to future research findings.
Reference:
Patent; Sunshine Lake Pharma Co., Ltd.; Calitor Sciences, LLC; Xi, Ning; Li, Minxiong; Li, Xiaobo; Dai, Weilong; Hu, Haiyang; Zhang, Tao; Chen, Wuhong; (78 pag.)US2016/229837; (2016); A1;,
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics