Boron tribromide → Octanedioic acid hydroxyamide [4-(2-nitro-phenyl)-thiazol-2-yl]-amide

関与物質

反応手順

A mixture of compound 15 (0.040 g, 0.083 mmol) in methylene chloride (1 mL) was cooled to −30° C. while boron tribromide (0.18 ml) 1M in methylene chloride was added dropwise. After stirring at room temperature for 2 hours, the mixture was cooled to 0° C. and quenched with saturated sodium bicarbonate. The reaction mixture was diluted with ethyl acetate and washed sequentially with saturated NaHCO3, and brine. The organic layer was dried over sodium sulfate and concentrated in vacuo to provide a crude residue which was purified by reverse phase HPLC to afford octanedioic acid hydroxyamide [4-(2-nitro-phenyl)-thiazol-2-yl]-amide 17 (0.018 g, 55% yield).

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