反应详情

A mixture of 6-chloromethyl-5-ethyl-imidazo[2,1-b]thiazole (120 mg, 0.6 mmol), 2-fluoro-6-(1H-imidazol-2-yl)pyridine (82 mg, 0.6 mmol) and potassium carbonate (278 mg, 2.4 mmol) in DMF (6 mL) is stirred at room temperature for 48 h. Brine (15 mL) and methylene chloride (20 mL) are added. The organic layer is separated and the aqueous layer is extracted with methylene chloride (2×20 mL). The combined organic layers are washed with brine (3×15 mL) and dried. The solvent is removed in vacuo. The residue is purified by preparative TLC to give 32 mg of 5-ethyl-6-[2-(6-fluoro-pyridin-2-yl)-imidazol-1-ylmethyl]-imidazo[2,1-b]thiazole as an oil. 1H NMR (CDCl3): 8.10, dd (1H); 7.82, dd (1H); 7.35, d (1H); 7.26, d (1H); 7.12, d (1H); 6.83, dd (1H); 6.80, d (1H); 5.92, s (2H); 2.90, q (2H); 1.07, t (3H).

1. customThe organic layer is separated
2. extractionthe aqueous layer is extracted with methylene chloride (2×20 mL)
3. washThe combined organic layers are washed with brine (3×15 mL)
4. customdried
5. customThe solvent is removed in vacuo
6. customThe residue is purified by preparative TLC