Electric Literature of 20485-43-2, These common heterocyclic compound, 20485-43-2, name is 1-Methyl-1H-imidazole-2-carboxylic acid, its 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.
General procedure: : TBTU (0.90 g, 0.27 mmol) was added to a mixture of intermediate (G45) (0.1 g, 0.25 mmol) with 1 -methyl- lH-imidazole-2-carboxylic acid (0.40 g, 0.27 mmol) and DIEA (0.65 mL, 0.39 mmol) in DCM (5 mL). The reaction mixture was stirred at RT overnight. The reaction mixture was poured into water. The organic layer was separated, washed with brine, dried over sodium sulfate, filtered and evaporated till dryness. The residue was purified by column chromatography (silica gel, DCM). The pure fractions were collected and the solvent was evaporated to give 97 mg (76%) of compound (El).
Statistics shows that 1-Methyl-1H-imidazole-2-carboxylic acid is playing an increasingly important role. we look forward to future research findings about 20485-43-2.
Reference:
Patent; JANSSEN SCIENCES IRELAND UC; LANCOIS, David, Francis, Alain; GUILLEMONT, Jerome, Emile, Georges; RABOISSON, Pierre, Jean-Marie, Bernard; ROYMANS, Dirk, Andre, Emmy; ROGOVOY, Boris; BICHKO, Vadim; LARDEAU, Delphine, Yvonne, Raymonde; MICHAUT, Antoine, Benjamin; (326 pag.)WO2016/174079; (2016); A1;,
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