反应详情

To the solution of 6-[4-(bromomethyl)phenyl]-2-chloro-5-phenylnicotinonitrile (2-5) 0.294 g, 0.766 mmol) in THF (5 mL) and MeOH (5 mL) was added 1-[4-(1,2,3-thiadiazol-4-yl)phenyl]methanamine (0.147 g, 0.766 mmol) and DIPEA (0.495 g, 3.831 mmol). The mixture wsa stirred overnight and concentrated. The residue was treated with aqueous Na2CO3 solution (2 M, 10 mL) and extracted with CH2Cl2 (3×30 mL). The combined organic layer was dried, filtered and concentrated. The residue was purified by silica gel chromatography (3-6% MeOH in CH2Cl2) to give 2-chloro-5-phenyl-6-[4-({[4-(1,2,3-thiadiazol-4-yl)benzyl]amino}methyl)phenyl]nicotinonitrile (2-6). 1H-NMR (500 MHz, CDCl3) δ 8.63 (s, 1H), 8.01 (d, J=8.0, 2H), 7.98 (s, 1H), 7.47 (d, J=8.1, 2H), 7.28-7.38 (m, 7H), 7.16-7.18 (m, 2H), 3.84 (s, 2H), 3.83 (s, 2H). LRMS m/z (M+H) Calcd: 494.0, found: 494.1.

1. concentrationconcentrated
2. additionThe residue was treated with aqueous Na2CO3 solution (2 M, 10 mL)
3. extractionextracted with CH2Cl2 (3×30 mL)
4. customThe combined organic layer was dried
5. filtrationfiltered
6. concentrationconcentrated
7. customThe residue was purified by silica gel chromatography (3-6% MeOH in CH2Cl2)