Electric Literature of 20485-43-2,Some common heterocyclic compound, 20485-43-2, name is 1-Methyl-1H-imidazole-2-carboxylic acid, molecular formula is C5H6N2O2, traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route.
Example 135 (S,Z)-N-(1-(2-chloro-6-((2,4-dioxothiazolidin-5-ylidene)methyl)phenyl)pyrrolidin-3-yl)-1-methyl-1H-imidazole-2-carboxamideTo a 50 mL vial charged with a magnetic stir bar was added (S,Z)-5-(2-(3-aminopyrrolidin-1-yl)-3-chlorobenzylidene)thiazolidine-2,4-dione (75 mg, 0.23 mmol) (Example 86), 1-methyl-1H-imidazole-2-carboxylic acid (87 mg, 0.69 mmol), HATU (220 mg, 0.58 mmol) and dichloromethane (5 mL). Hunig’s base (0.202 mL, 1.16 mmol) was then added and the mixture was stirred at rt for 4 h. The reaction was then diluted with dichloromethane and washed with water. The mixture was separated with a phase separator tube and the organic phase was evaporated to dryness. The residue was purified by reverse phase chromatography to afford the title compound as a yellow solid (21 mg, 21%). 1H NMR (400 MHz, DMSO-d6) delta ppm 7.89 (s, 1H) 7.51 (dd, 1H) 7.41 (dd, 1H) 7.18-7.27 (m, 2H) 7.01 (s, 1H) 4.67-4.77 (m, 1H) 4.00 (s, 3H) 3.63-3.75 (m, 2H) 3.47-3.54 (m, 1H) 3.36-3.47 (m, 1H) 2.39-2.51 (m, 1H) 2.14 (dd, 1H); m/z 432.
These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 1-Methyl-1H-imidazole-2-carboxylic acid, its application will become more common.
Reference:
Patent; ASTRAZENECA AB; US2011/218182; (2011); A1;,
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem