反应详情

温度

80 °C

To a solution of 9-(5-{5-chloro-6-[(1-methylethyl)oxy]-3-pyridinyl}-1,2,4-oxadiazol-3-yl)-2,3,4,5-tetrahydro-1,4-benzoxazepine hydrochloride (Preparation 90) (80 mg, 0.189 mmol) in acetonitrile (10 ml) was added N,N-diisopropylethylamine (0.066 ml, 0.378 mmol) followed by ethyl 3-bromopropanoate (0.048 ml, 0.378 mmol). The reaction mixture was heated at 80° C. overnight. A further 1 equivalent of N,N-diisopropylethylamine and ethyl 3-bromopropanoate were added and heating continued overnight. The reaction mixture was cooled and evaporated. The residue was purified by column chromatography on silica. Elution with 40-60% ethyl acetate in cyclohexane to give the title compound as an olive green coloured oil (28 mg).

1. temperatureheating continued overnight
2. temperatureThe reaction mixture was cooled
3. customevaporated
4. customThe residue was purified by column chromatography on silica
5. washElution with 40-60% ethyl acetate in cyclohexane