反应详情

To a stirred solution of 2-(5-{4-[(4S,5R)-3-(2,2-Difluoro-acetyl)-4-fluoromethyl-2,2-dimethyl-oxazolidin-5-yl]-phenyl}-pyridin-2-yl)-pyrrolidine-1-carboxylic acid tert-butyl ester (500 mg, 0.94 mmol) and CH2Cl2 (20 mL), cooled to 0° C., is added trifluoroacetic acid (3 mL) and water (100 ul). The reaction is allowed to warm to ambient temperature, and is stirred for a further 2 hours. Toluene (20 mL) is added and the reaction mixture concentrated under vacuum to give the crude product. Purification by preparative HPLC gave the title compound (217 mg): 1H NMR (400 MHz, CDCl3), 1.88-2.06 (m, 3H), 2.38-2.48 (m, 1H), 3.22-3.40 (m, 3H), 4.25-4.37 (m, 1.5H), 4.4-4.47 (m, 0.5H), 4.52-4.59 (m, 0.5H), 4.63-4.70 (m, 0.5H), 4.71-4.78 (m, 1H), 4.86-4.94 (m, 1H), 5.89-6.01 (m, 1H), 6.20 (t, 1H), 7.43-7.53 (m, 2H), 7.58-7.63 (1H, m), 7.71-7.77 (m, 2H), 8.15-8.24 (m, 1H), 8.82-8.88 (m, 1H), 8.9-8.94 (m, 1H). m/z M+H 394.

1. concentrationthe reaction mixture concentrated under vacuum
2. customto give the crude product
3. customPurification by preparative HPLC