反应详情

To a solution of N-(4-cyano-2-hydroxymethyl-benzyl)-N-(3,5-dimethyl-pyridin-2-ylmethyl)-2-nitro-benzene-sulfonamide (0.82 g, 1.76 mmol) dissolved in DMF (35 mL) was added K2CO3 (1.21 g, 8.75 mmol) and thiophenol (0.54 mL, 5.28 mmol). The mixture was stirred at room temperature for 3 hours then concentrated in vacuo and redissolved in CH2Cl2 (50 mL). The mixture was filtered through a celite plug and the filtrate was concentrated in vacuo to afford a yellow solid. Purification by column chromatography on silica gel (hexane:EtOAc, 4:1, v/v →EtOAc) afforded 4-{[(3,5-dimethyl-pyridin-2-ylmethyl)-amino]-methyl}-3-hydroxymethyl-benzonitrile (0.176 g, 35%) as a yellow solid. 1H NMR (CDCl3) δ 2.20 (s, 3H), 2.28 (s, 3H), 3.82 (s, 2H), 3.99 (s, 2H), 4.65 (s, 2H), 7.26 (s, 1H), 7.36 (d, 1H, J=6.0 Hz), 7.55 (d, 1H, J=6.0 Hz), 7.64 (s, 1H), 8.20 (s, 1H).

1. concentrationthen concentrated in vacuo
2. dissolutionredissolved in CH2Cl2 (50 mL)
3. filtrationThe mixture was filtered through a celite plug
4. concentrationthe filtrate was concentrated in vacuo
5. customto afford a yellow solid
6. customPurification by column chromatography on silica gel (hexane:EtOAc, 4:1, v/v →EtOAc)