反应详情

To a solution of 5-[5-(3-hydroxy-phenylamino)-2-methyl-phenyl]-2-methylsulfanyl-4-pyridin-3-yl-thiophene-3-carbonitrile (330 mg, 0.77 mmol) in DMF (anhydrous, 5 mL) was added 3-bromo-propan-1-ol (214 mL, 1.54 mmol). The reaction was stirred at 70° C. in the presence of excess K2CO3 overnight then cooled to ambient temperature and partitioned between water and DCM. The mixture was extracted with DCM (30 ml×3) and the combined organic layers were dried over Na2SO4 and concentrated in vacuo. Purification by chromatography (2% MeOH-DCM) afforded desired product (370 mg, 99%). 1H NMR (CDCl3): δ8.6(d, 1H), 8.5 (d, 1H), 8.1 (s, 1H), 7.7 (d, 1H), 7.4 (s, 1H), 7.3-7.2 (m, 3H), 7.0 (d, 1H), 6.6 (d, 1H), 4.1 (t, 2H), 3.9 (t, 2H), 2.7 (s, 3H), 2.0 (m, 2H), 1.5 (s, 3H)

1. custompartitioned between water and DCM
2. extractionThe mixture was extracted with DCM (30 ml×3)
3. dry with materialthe combined organic layers were dried over Na2SO4
4. concentrationconcentrated in vacuo
5. customPurification by chromatography (2% MeOH-DCM)