反应详情

To a solution of benzyl 2-(4-fluoro-3-nitrobenzamido)acetate (85 mg) in EtOAc (10 mL) was added Pd/C (10%, 100 mg) at rt and stirred under the atmosphere of H2 gas for 25 min. Work-up of the reaction mixture as described in example 1 gave the product as a white color solid (38 mg, 70%), mp 150-152° C. 1H NMR (400 MHz, CDCl3+DMSO-d6): δ 7.74 (1H, br s), 7.37 (1H, dd, J=8.6, 1.8 Hz), 7.12-7.16 (1H, m), 6.97 (1H, dd, J=10.6, 8.6 Hz), 4.07 (2H, d, J=5.6 Hz); 13C NMR (100 MHz, CDCl3+DMSO-d6): δ 170.6, 165.9, 151. 9 (d, J=242 Hz), 134.5 (d, J=13 Hz), 129.6 (d, J=3 Hz), 115.4 (d, J=8 Hz), 115.1 (d, J=6 Hz), 113.6 (d, J=19 Hz), 40.5; LC-MS (negative ion mode): m/z 211 (M−H)−.