反应详情

To a mixture of 2-[4-(2-bromoethoxy)-3-propylphenyl]-4-ethyl-1,3-thiazole (105 mg, 0.30 mmol) (Example 34) and ethyl [(1S)-5-hydroxy-2,3-dihydro-1H-inden-1-yl]acetate (65 mg, 0.30 mmol) (Example 6) in DMF (4 mL, containing 1% v/v of water), was added Cs2CO3 (145 mg, 0.44 mmol), and the mixture was stirred for 24 h at rt. The reaction mixture was concentrated under reduced pressure, and the residue was suspended in EtOAc and filtered. The filtrate was concentrated and purified by silica gel chromatography (gradient:100% hexane to 1:9 (v/v) EtOAc/hexane) to give 66 mg (41%) of the title compound as an oil. 1H NMR (400 MHz, CDCl3): δ 7.72-7.58 (m, 3H), 6.98 (d, 1H), 6.86-6.60 (m, 3H), 4.33-4.28 (br, 2H), 4.28-4.20 (br, 1H), 4.10 (q, 2H), 3.52-3.40 (m, 1H), 2.84 (m, 4H), 2.64 (dd, 1H), 2.58-2.50 (m, 3H), 2.40-2.24 (m, 2H), 1.72-1.50 (m, 3H), 1.26 (t, 3H), 1.20 (t, 3H), 0.84 (t, 3H).

1. concentrationThe reaction mixture was concentrated under reduced pressure
2. filtrationfiltered
3. concentrationThe filtrate was concentrated
4. custompurified by silica gel chromatography (gradient:100% hexane to 1:9 (v/v) EtOAc/hexane)