Related Products of 866775-18-0, With the rapid development and complex challenges of chemical substances, the synthesis of new drugs is usually one of the most effective ways to increase yield.866775-18-0, name is Methyl 3-amino-6-bromo-5-(trifluoromethyl)picolinate, molecular formula is C8H6BrF3N2O2, molecular weight is 299.05, as common compound, the synthetic route is as follows.
Step 1: 3-Amino-6-cyclopropyl-5-(trifluoromethyl)picolinic acidA microwave vial was charged with amino-6-bromo-5-trifluoromethyl-pyridine-2-carboxylic acid methyl ester (Intermediate A4) (0.5 g, 1.754 mmol), cyclopropylboronic acid (0.753 g, 8.77 mmol), and 1,1’Bis(diphenylphosphosphino) ferrocene palladium dichloride (0.143 g, 0.175 mmol). The mixture was taken up as a solution in THF (6 ml) and flushed with N2, sealed and heated using microwave radiation at 150 C. for 20 minutes. The reaction mixture was filtered through Celite (filter material) and washed through with EtOAc (20 ml). The filtrate was partitioned between EtOAc (30 ml) and water (50 ml). The phases were separated and the organic portion was washed with brine (30 ml), dried over MgSO4, filtered and concentrated under vacuum.The crude material was taken up in EtOAc (20 ml) and dry loaded onto silica (2-3 g). Material then purified on the Combiflash Rf Teledyne ISCO System 100% Isohexane to 60% EtOAc:Isohexane to afford semi pure material which was used without further purification.
Statistics shows that 866775-18-0 is playing an increasingly important role. we look forward to future research findings about Methyl 3-amino-6-bromo-5-(trifluoromethyl)picolinate.
Reference:
Patent; NOVARTIS AG; US2011/230483; (2011); A1;,
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