反应详情

To a mixture of 4-[(N-(t-butoxycarbonyl)piperidin-4-yl)oxy]-3-trifluoromethylbenzenamine (4.9 g) and 3-cyano-6-((4-methoxybenzyl)oxy)-1-(2-formylethenyl)benzene (4 g) in MeOH (80 mL) was added acetic acid (0.73 g). The resulting solution was stirred at ambient temperature for 15 minutes and then NaCNBH3 was added. The resulting solution was stirred at ambient temperature for 1 hour and concentrated. The residue was taken up in 100 mL of aqueous NaHCO3 and extracted with ethyl acetate (3×). The organic layer was dried, concentrated and purified on silica gel column (ethyl acetate/hexane, 3:7) to afford 5.7 g of 4-(N (t-butoxycarbonyl)piperidin-4-yl)oxy-3-trifluoromethyl-N-(3-(6-((4-methoxybenzyl)oxy)-3-cyanophenyl)prop-2-en-1-yl)benzenamine as a yellow oil.

1. stirringThe resulting solution was stirred at ambient temperature for 1 hour
2. concentrationconcentrated
3. extractionextracted with ethyl acetate (3×)
4. customThe organic layer was dried
5. concentrationconcentrated
6. custompurified on silica gel column (ethyl acetate/hexane, 3:7)