反应详情

温度

50 °C

2,6-Dichloro-9-[(1R,4S)-4-(5-ethyl-tetrazol-2-yl)-cyclopent-2-enyl]-9H-purine (step 1) (0.2 g, 0.57 mmol) is dissolved in THF (5 ml) under an atmosphere of argon. Diisopropylamine (0.088 g, 0.68 mmol) is added followed by 2,2-diphenylethylamine (0.123 g, 0.63 mmol) and the reaction mixture is stirred at 50° C. for 4 hours. The solvent is removed in vacuo and residue is partitioned between dichloromethane (20 mL) and 2M HCl (20 mL). The organic layer is washed with sat. NaHCO3 (20 mL), water (20 ml) and brine (20 ml), dried over MgSO4, filtered and the solvent is removed in vacuo to give the title compound. 1H nmr (CDCl3, 400 MHz); 8.20 (br s, 1H), 7.30-7.10 (m, 10H), 6.30 (m, 1H), 6.20 (m, 1H), 5.95 (m, 1H), 5.80 (m, 1H), 4.35 (m, 1H), 4.20 (m, 2H), 3.35 (m, 1H), 2.85 (q, 2H), 2.20 (m, 1H), 1.30 (t, 3H), MS (ES+) m/e 512 (MH+).

1. customThe solvent is removed in vacuo and residue
2. customis partitioned between dichloromethane (20 mL) and 2M HCl (20 mL)
3. washThe organic layer is washed with sat. NaHCO3 (20 mL), water (20 ml) and brine (20 ml)
4. dry with materialdried over MgSO4
5. filtrationfiltered
6. customthe solvent is removed in vacuo