C[O:2][CH2:3][C:4]1[NH:5][C:6]([C:10]2[C:11]([CH3:21])=[CH:12][C:13]([CH3:20])=[C:14]([CH:19]=2)[C:15]([O:17]C)=[O:16])=[C:7]([CH3:9])[N:8]=1>Br>[OH:2][CH2:3][C:4]1[NH:5][C:6]([C:10]2[C:11]([CH3:21])=[CH:12][C:13]([CH3:20])=[C:14]([CH:19]=2)[C:15]([OH:17])=[O:16])=[C:7]([CH3:9])[N:8]=1Into a 100-mL round-bottom flask, was placed methyl 5-(2-(methoxymethyl)-4-methyl-1H-imidazol-5-yl)-2,4-dimethylbenzoate (compound 222.4, 220 mg, 0.76 mmol) and HBr (20 mL, 40% in HOAc). The reaction mixture was stirred overnight at 80° C. The resulting mixture was concentrated under reduced pressure. This resulted in 190 ma (crude) of the title compound as a brown solid.
読み込み中…