反应详情

To a mixture of 2-[(2-Oxopiperazin-1-yl)methyl]-2,3-dihydro-1H-indene-5-carbonitrile (170 mg, 0.70 mmol), NaBH3CN (84 mg, 1.3 mmol) and HOAc (80 mg, 1.3 mmol) in 50 mL MeOH was added (1-Oxo-1,3-dihydro-2-benzofuran-5-yl)acetaldehyde (235 mg, 1.3 mmol) and the mixture was stirred at RT overnight. Then saturated Na2CO3 (50 mL) was added and stirred for 30 min and extracted with EtOAc (3×50 mL). The combined organic layers were washed with water and brine, dried over anhydrous sodium sulfate, and concentrated. The residue was purified by prep-TLC to give the title product. 1H-NMR (400 MHz, MeOD) δ ppm 7.78 (d, J=7.8 Hz, 1H), 7.46˜7.51 (m, 4H), 7.34 (d, J=7.8 Hz, 1H), 5.34 (s, 2H), 3.48 (d, J=7.0 Hz, 2H), 3.43 (t, J=5.5 Hz, 2H), 3.21 (s, 2H), 2.69˜3.09 (m, 11H).

1. stirringstirred for 30 min
2. extractionextracted with EtOAc (3×50 mL)
3. washThe combined organic layers were washed with water and brine
4. dry with materialdried over anhydrous sodium sulfate
5. concentrationconcentrated
6. customThe residue was purified by prep-TLC