Application of 128694-63-3, The chemical industry reduces the impact on the environment during synthesis 128694-63-3, name is 1-Methyl-3-(trifluoromethyl)-1H-pyrazole-5-carboxylic acid, I believe this compound will play a more active role in future production and life.
Example 309 Production of N-[5-({2-[(cyclopropylcarbonyl)amino]imidazo[1,2-b]pyridazin-6-yl}oxy)-2-methylphenyl]-1-methyl-3-(trifluoromethyl)-1H-pyrazole-5-carboxamide In the same manner as in Example 259 and using 1-methyl-3-(trifluoromethyl)-1H-pyrazole-5-carboxylic acid (160 mg, 0.80 mmol), tetrahydrofuran (5 mL), N,N-dimethylformamide (1 drop), oxalyl chloride (170 muL, 2.0 mmol), N-[6-(3-amino-4-methylphenoxy)imidazo[1,2-b]pyridazin-2-yl]cyclopropanecarboxamide (200 mg, 0.62 mmol) and N,N-dimethylacetamide (7 mL) as starting materials, the title compound (240 mg, 76%) was obtained as a white solid. 1H-NMR (DMSO-d6, 300 MHz) delta 0.74-0.86 (4H, m), 1.86-1.97 (1H, m), 2.27 (3H, s), 4.15 (3H, s), 7.05 (1H, d, J=9.6 Hz), 7.13 (1H, dd, J=8.3, 2.6 Hz), 7.30 (1H, d, J=2.6 Hz), 7.37 (1H, d, J=8.3 Hz), 7.49 (1H, s), 7.94 (1H, s), 8.04 (1H, d, J=9.6 Hz), 10.13 (1H, s), 11.08 (1H, s).
In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles, 1-Methyl-3-(trifluoromethyl)-1H-pyrazole-5-carboxylic acid, other downstream synthetic routes, hurry up and to see.
Reference:
Patent; TAKEDA PHARMACEUTICAL COMPANY LIMITED; US2009/137595; (2009); A1;,
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics