反应详情

To a solution of 90 mg (0.2 mmol) [3-methoxy-4-(4-methyl-imidazol-1-yl)-phenyl]-(4,5,6,7-tetrahydro-thiazolo[5,4-c]pyridin-2-yl)-amine trihydrochloride and 35 mg (0.22 mmol) 4-fluorophenylacetic acid in DMF (2 ml) 121 mg (1.2 mmol) N-methyl morpholine and 114 mg (0.3 mmol) HBTU were added. The reaction was stirred over night at room temperature. The reaction was diluted with 2N aqueous NaOH solution (6 ml) and extracted twice with ethyl acetate. The combined organic layers were dried over sodium sulphate, filtered and the solvent was evaporated under reduced pressure. The crude product was purified on silica gel with methylene chloride/methanol 19/1 yielding 70 mg (73%) 2-(4-fluoro-phenyl)-1-{2-[3-methoxy-4-(4-methyl-imidazol-1-yl)-phenylamino]-6,7-dihydro-4H-thiazolo[5,4-c]pyridin-5-yl}-ethanone as a yellow viscous oil. MS ISP (m/e): 478.0 (100) (M+H)+. 1H NMR (DMSO-D6, 250 MHz): δ (ppm)=10.32 (s, 1H), 7.65 (s, 1H), 7.46 (s, 1H), 7.32-7.24 (m, 4H), 7.30 (d, 1H), 7.24 (d, 1H), 7.02 (s, 1H), 4.65 & 4.55 (br s, 2H), 3.84 (m, 2H), 3.78 (s, 3H), 2.89 (s, 2H), 2.62 (m, 2H), 2.14 (s, 3H).

1. extractionextracted twice with ethyl acetate
2. dry with materialThe combined organic layers were dried over sodium sulphate
3. filtrationfiltered
4. customthe solvent was evaporated under reduced pressure
5. customThe crude product was purified on silica gel with methylene chloride/methanol 19/1 yielding 70 mg (73%) 2-(4-fluoro-phenyl)-1-{2-[3-methoxy-4-(4-methyl-imidazol-1-yl)-phenylamino]-6,7-dihydro-4H-thiazolo[5,4-c]pyridin-5-yl}-ethanone as a yellow viscous oil