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. 178876-83-0, name is Methyl 6-amino-3-bromopicolinate. This compound has unique chemical properties. The synthetic route is as follows. SDS of cas: 178876-83-0
Example 158D methyl 3-bromo-6-fluoropicolinate To a solution of nitrosonium terafluoroborate (17.8 g) in dichloromethane (100 mL) at 5 C. was added EXAMPLE 158C (26.1 g) in dichloromethane (250 mL) over 1 hour. The reaction mixture was stirred an for additional 30 minutes at 5 C., and then allowed to warm to room temperature overnight. The reaction mixture was quenched with pH 7 buffer (100 mL), and then neutralized with solid potassium carbonate. The resulting mixture was extracted with ether (twice), and the combined extracts were washed with brine, dried over sodium sulfate, filtered and concentrated. The residue was purified by flash chromatography on silica gel eluting with 1 to 10% ethyl acetate in hexanes to provide the title compound.
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Reference:
Patent; AbbVie Inc.; Wang, Le; Doherty, George; Wang, Xilu; Tao, Zhi-Fu; Bruncko, Milan; Kunzer, Aaron R.; Wendt, Michael D.; Song, Xiaohong; Frey, Robin; Hansen, Todd M.; Sullivan, Gerard M.; Judd, Andrew; Souers, Andrew; US2013/96121; (2013); A1;,
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