反应详情

The product of Step B was dissolved in 4 mL of methanol and 0.85 mL of 1N NaOH was added. The mixture was stirred overnight and the solvent was evaporated. The residue was dissolved in water, filtered and acidified. Ethyl acetate extraction and standard workup gave 30 mg of the title compound.

1. customthe solvent was evaporated
2. dissolutionThe residue was dissolved in water
3. filtrationfiltered
4. extractionEthyl acetate extraction and standard workup