反应详情

温度

65 °C

A mixture of N-(4-(2-(4-aminophenyl)ethyl)-1,3-thiazol-2-yl)acetamide (65 mg) prepared in a similar manner according to Step 6 of Production Example 1, ethyl 2-(methylsulfanyl)-4,5-dihydro-1H-imidazole-1-carboxylate (56 mg), acetic acid (0.1 ml), ethanol (0.9 ml) was stirred at 65° C. for 6 hours, and then refluxed for 5 hours. The reaction mixture was poured into ethyl acetate (5 ml) and saturated aqueous sodium bicarbonate. The precipitated solid was filtered, and the solid was dissolved in 50% methanol/chloroform. The insoluble materials were filtered off and the filtrate was concentrated in vacuo. The solid residue was collected and washed with ethyl acetate to give N-(4-{2-[4-(4,5-dihydro-1H-imidazol-2-ylamino)phenyl]-ethyl}-1,3-thiazol-2-yl)acetamide (40 mg).

1. customprepared in a similar manner
2. temperaturerefluxed for 5 hours
3. filtrationThe precipitated solid was filtered
4. dissolutionthe solid was dissolved in 50% methanol/chloroform
5. filtrationThe insoluble materials were filtered off
6. concentrationthe filtrate was concentrated in vacuo
7. customThe solid residue was collected
8. washwashed with ethyl acetate