反应详情

温度

60 °C

Aqueous lithium hydroxide (1 N, 1.0 mL, 1.0 mmol) was added to a solution of methyl 7-methoxy-2-(4-(methoxycarbonyl)benzyl)-1-oxo-4-(3-(trifluoromethyl)phenyl)-2,3-dihydro-1H-indene-2-carboxylate (36 mg, 0.071 mmol) in THF (1.0 mL) in a scintillation vial. The vial was sealed under nitrogen and heated at 60° C. After 24 h, the reaction mixture was allowed to cool and the volatiles were evaporated under a stream of nitrogen. The residue was diluted with water (5.0 mL), acidified with 1 N aqueous HCl (2.0 mL) and extracted with EtOAc (3×20 mL). The combined organic extracts were dried (Na2SO4), filtered and concentrated in vacuo. The resulting crude residue was purified by combiflash (4 g column, CH2Cl2→20% MeOH/CH2Cl2, gradient). All fractions containing the desired product were combined and the resulting crude product was further purified by preparative thin layer chromatography (1000 μM thickness, EtOAc), to afford 8 mg (26%) of the title compound.

1. customThe vial was sealed under nitrogen
2. temperatureto cool
3. customthe volatiles were evaporated under a stream of nitrogen
4. additionThe residue was diluted with water (5.0 mL)
5. extractionextracted with EtOAc (3×20 mL)
6. dry with materialThe combined organic extracts were dried (Na2SO4)
7. filtrationfiltered
8. concentrationconcentrated in vacuo
9. customThe resulting crude residue was purified by combiflash (4 g column, CH2Cl2→20% MeOH/CH2Cl2, gradient)
10. additionAll fractions containing the desired product
11. customthe resulting crude product was further purified by preparative thin layer chromatography (1000 μM thickness, EtOAc)