反应详情

To a solution of 0.247 g of 6-fluoro-8-piperazino-quinoline (Step 3) in 10 mL of dichloroethane, was added 0.226 g of 1-quinolin-8-yl-piperidin-4-one (Example A, Step 6, above) followed by 0.274 g of sodium triacetoxyborohydride and 0.1 mL acetic acid. The reaction was stirred at room temperature overnight. It was quenched with 1N NaOH, and the product was extracted with CH2Cl2. The organic phase was washed with water and dried over magnesium sulfate. The product crystallized and filtered to give 0.200 g of the desired product. Mp: 211° C.; MS (ES) m/z (relative intensity): 442 (M++−H, 100).

1. customIt was quenched with 1N NaOH
2. extractionthe product was extracted with CH2Cl2
3. washThe organic phase was washed with water
4. dry with materialdried over magnesium sulfate
5. customThe product crystallized
6. filtrationfiltered