Each compound has different characteristics, and only by selecting the characteristics of the compound suitable for a specific situation can the compound be applied on a large scale. 1072-97-5, name is 5-Bromopyridin-2-amine. This compound has unique chemical properties. The synthetic route is as follows. HPLC of Formula: C5H5BrN2
NaH (47.3 mg, 1.971 mmol) and 5-bromo-2-pyridinamine (310 mg, 1.792 mmol, available from Aldrich) were added to N,N-Dimethylformamide (DMF) (7 mL) and stirred in an ice bath for 30 mins. The reaction mixture was then allowed to warm to room temperature and methyl iodide (0.123 mL, 1.971 mmol) was added and the reaction mixture stirred for 24 hr. The reaction mixture was partitioned between DCM (20 mL) and water (20 mL) and the organic layer washed with more water (20 mL) before being dried through an hydrophobic frit and concentrated. The residue was dissolved in DCM and purified by SP4 on a 25+S silica cartridge using a gradient of 10%-40% EtOAc in cyclohexane. Appropriate fractions were collected and concentrated to yield the desired product as a white solid (79.1 mg). LCMS (Method C): Rt 0.39, MH+=187
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Reference:
Patent; Demont, Emmanuel Hubert; Garton, Neil Stuart; Gosmini, Romain Luc Marie; Hayhow, Thomas George Christopher; Seal, Jonathan; Wilson, David Matthew; Woodrow, Michael David; US2012/208798; (2012); A1;,
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