反应详情

To a solution of EXAMPLE 340C (240 mg) and 3-(cyclopropylamino)propanenitrile (62 mg) in tetrahydrofuran (10 mL) was added acetic acid (2 mL) and MP-cyanoborohydride (300 mg, 2.15 mmol/g). The mixture was stirred overnight. The mixture was filtered and concentrated under vacuum and the residue was dissolved in dimethylsulfoxide/methanol (1:1, 10 mL) and loaded on Gilson, C18 (100A) 250×121.2 mm (10 micron), with 30% acetonitrile to 65% acetonitrile over 40 minutes. 1H NMR (300 MHz, dimethylsulfoxide-d6) δ 11.66 (s, 1 H), 8.55 (dd, 1 H), 8.17 (d, 1 H), 8.03 (d, 1 H), 7.79 (d, 1 H), 7.49 (m, 3 H), 7.34 (d, 2 H), 7.11 (m, 1 H), 7.04 (d, 2 H), 6.67 (dd, 1 H), 6.38 (d, 1 H), 6.19 (d, 1 H), 4.01 (m, 1 H), 3.56 (m, 1 H), 3.06 (m, 4 H), 2.88 (t, 2 H), 2.65 (m, 6 H), 2.19 (m, 6 H), 2.00 (m, 7 H), 1.51 (m, 6 H), 0.92 (s, 6 H), 0.42 (m, 4 H).

1. filtrationThe mixture was filtered
2. concentrationconcentrated under vacuum
3. dissolutionthe residue was dissolved in dimethylsulfoxide/methanol (1:1, 10 mL)
4. waitC18 (100A) 250×121.2 mm (10 micron), with 30% acetonitrile to 65% acetonitrile over 40 minutes