反应详情

To a solution of {6-[5-(4-trifluoromethoxy-phenyl)-pent-4-ynyloxy]-indol-1-yl}-acetic acid ethyl ester (30 mg, 67 μmol) in THF/methanol 2/1 (1.5 ml) was added 1 N aqueous LiOH solution (400 μl). The reaction mixture was stirred for 14 h at ambient temperature and concentrated under reduced pressure. The residue was dissolved in 1 N HCl/ice water 1/1 and ethyl acetate, the layers were separated and the aqueous layer was extracted with ethyl acetate. The combined organic layers were washed with ice water/brine 1/1, dried over sodium sulfate and the solvent was evaporated in vacuo to give the title compound (28 mg, 67 μmol, quant.) as brown crystals.

1. concentrationconcentrated under reduced pressure
2. dissolutionThe residue was dissolved in 1 N HCl/ice water 1/1
3. customethyl acetate, the layers were separated
4. extractionthe aqueous layer was extracted with ethyl acetate
5. washThe combined organic layers were washed with ice water/brine 1/1
6. dry with materialdried over sodium sulfate
7. customthe solvent was evaporated in vacuo