反应详情

To (E)-2-bromo-4-(4,4,4-trifluoro-3-(3,4,5-trichlorophenyl)but-1-enyl)benzoic acid (200 mg, 0.409 mmol) in MeCN (5 mL) was added 1H-benzo[d][1,2,3]-triazol-1-ol hydrate (63 mg, 0.411 mmol), HBTU (155 mg, 0.409 mmol), N-(2,2,2-trifluoroethyl) 1-amino-2-methyl-propanecarboxamide hydrochloride (180 mg, 0.816 mmol) and diisopropylethylamine (0.24 mL, 1.38 mmol). After 24 h the material was concentrated in vacuo. The crude product was purified by passing the crude reaction mixture through a silica frit and eluting with EtOAc/hexane (1:2). The recovered material was further purified by medium pressure chromatography on silica with EtOAc/hexane as the eluent to afford the title as a white foam (147 mg, 55%). Characterization data for this molecule is listed in Table 2.

1. concentrationAfter 24 h the material was concentrated in vacuo
2. customThe crude product was purified
3. customreaction mixture through a silica frit
4. washeluting with EtOAc/hexane (1:2)
5. customThe recovered material was further purified by medium pressure chromatography on silica with EtOAc/hexane as the eluent