反应详情

温度

90 °C

A suspension of (R) and (S)-5′-fluoro-2,2-dimethylspiro[cyclopropane-1,3′-indolin]-2′-one (2 mmol) (prepared as in Example 100), methyl-3-bromo-5-(2-oxooxazolidin-3-yl)benzoate (682 mg, 2 mmol), CuI (76 mg, 0.4 mmol), potassium carbonate (545 mg, 4 mmol) and N,N′-dimethyl-ethane-1,2-diamine (86 uL, 0.8 mmol) in acetonitrile (15 mL) was stirred for 16 hours at 90° C. The precipitate was filtered off and washed with ethyl acetate. The filtrate was concentrated in vacuo to afford the title compound as white powder (480 mg, 80%) which was used for the next step without further purification.

1. filtrationThe precipitate was filtered off
2. washwashed with ethyl acetate
3. concentrationThe filtrate was concentrated in vacuo