反应详情

温度

0 °C

3-[(4-Methyl-cyclohexanecarbonyl)-(4-oxo-cyclohexyl)-amino]-5-phenyl-thiophene-2-carboxylic acid methyl ester (55 mg, 0.121 mmol) was dissolved in methanol (1.2 ml), cooled to 0° C. and then sodium borohydride (4.6 mg, 0.121 mmol) was added. After 30 minutes of stirring at 0° C., the reaction was quenched with a 10% solution of hydrochloric acid (5 ml) and the aqueous phase was extracted with ethyl acetate (3×10 mL). The combined ethyl acetate layer was dried (Na2SO4) and concentrated. The residue was then purified by preparative chromatography (3% MeOH/CH2Cl2) to obtain 34 mg (62%) of 3-[(trans-4-Hydroxy-cyclohexyl)-(trans-4-methyl-cyclohexanecarbonyl)-amino]-5-phenyl-thiophene-2-carboxylic acid methyl ester.

1. customthe reaction was quenched with a 10% solution of hydrochloric acid (5 ml)
2. extractionthe aqueous phase was extracted with ethyl acetate (3×10 mL)
3. dry with materialThe combined ethyl acetate layer was dried (Na2SO4)
4. concentrationconcentrated
5. customThe residue was then purified by preparative chromatography (3% MeOH/CH2Cl2)