反应详情

Combine 4-(5-formyl-thiophen-2-yloxy)-benzamide (90 mg, 0.36 mmol) from Example 1, part B, method B, with 2-(3-fluoro-phenyl)-ethylamine (61 mg, 0.44 mmol), methyl orthoformate (0.48 mL) and methanol (0.7 mL). Stir the resulting mixture for 3 hours and then add sodium borohydride in portions. Stir the reactiom misture until the reaction is complete by TLC or HPLC analyses. Then, concentrate to remove the methanol. Partition the resulting residue between H2O (4 mL) and CH2Cl2 (6 ml). Dry the organic layer over sodium sulfate, filter and concentrate. Purify through flash chromatography [CH2Cl2/Ammonia (2.0 M in methanol) 20/1] to provide the title compound. 1H NMR (CDCl3): 7.72 (d, J=8.7 Hz, 2H), 7.21-7.13 (m, 1H), 7.03 (d, J=8.7 Hz, 2H), 6.92-6.80 (m, 3H), 6.56 (d, J=3.6 Hz, 1H), 6.36 (d, J=3.7 Hz, 1H), 5.82 (bs, 2H), 3.83 (s, 2H), 2.87 (t, J=6.5 Hz, 2H), 2.75 (t, J=6.6 Hz, 2H).

1. stirringStir the reactiom misture until the reaction
2. concentrationThen, concentrate
3. customto remove the methanol
4. customPartition the resulting residue between H2O (4 mL) and CH2Cl2 (6 ml)
5. dry with materialDry the organic layer over sodium sulfate
6. filtrationfilter
7. concentrationconcentrate
8. customPurify through flash chromatography [CH2Cl2/Ammonia (2.0 M in methanol) 20/1]