反应详情

Trans-{4-[(Quinoline-4-carbonyl)-amino]-cyclohexyl}-thioacetic acid S— ethyl ester (1.87 g, 5 mmol) was solved in acetone/methylene chloride (40/40 mL), 0.8 g of molecular sieves were added to the mixture and the solution was stirred for 0.5 h. Then 0.558 g (1 mmol) of palladium on active charcoal 10% was added followed by 1.25 mL (8 mmol) of triethyl-silane. The reaction was stirred for 1.5 hours at room temperature and additional 0.558 g (1 mmol) of palladium on active charcoal 10% and 1.25 mL (8 mmol) of triethyl-silane were added and the stirring was continued for another hour. The mixture was filtrated through celite and the mother liquid was concentrated to obtain after chromatography using heptane/acetate 1:1 1.1 (37.1 mmol, 70.8% yield) of the final compound. MS (m/e): 297.3 (M+H+)

1. addition0.8 g of molecular sieves were added to the mixture
2. stirringThe reaction was stirred for 1.5 hours at room temperature
3. waitthe stirring was continued for another hour
4. filtrationThe mixture was filtrated through celite
5. concentrationthe mother liquid was concentrated
6. customto obtain after chromatography