反应详情

A solution of 4-tert-butylphenoxy acetic acid (60.1 mg, 0.29 mmol), 2-amino isonicotinamide (60.3 mg, 0.44 mmol), DIPEA (0.1 ml, 0.58 mmol) and PyBOP (301.8 mg, 0.58 mmol) in DMF 4.0 mL was stirred, then partitioned between ethyl acetate and water. The organic phase was washed with brine, dried over anhydrous MgSO4, and concentrated. The residue was purified by Prep-TLC (n-Hexane:EtoAc:MeOH=6:3:1) to give 2-[2-(4-tert-butyl-phenoxy)-acetylamino]-isonicotinamide as a white solid (53.6 mg, 56.5% yield).

1. custompartitioned between ethyl acetate and water
2. washThe organic phase was washed with brine
3. dry with materialdried over anhydrous MgSO4
4. concentrationconcentrated
5. customThe residue was purified by Prep-TLC (n-Hexane:EtoAc:MeOH=6:3:1)