Sodium Hydroxide → HCID 22260948, compound

Participants

Reaction Steps

To a solution of 275 mg of methyl 3-benzo[b]furan-2-yl-1H-5-indazolecarboxylate in 3 ml methanol and 3 ml tetrahydrofuran was added 1.5 ml of 5 N aqueous sodium hydroxide solution, and the mixture was stirred at room temperature for five days. After removing the solvent by distillation, the residue was added with 9 ml of 1 N hydrochloric acid, and the mixture was extracted with 200 ml of ethyl acetate. The organic layer was washed with brine, dried over anhydrous magnesium sulfate and the solvent was evaporated, to give 320 mg of the title compound as pale yellow crystals.

Provenance & Evidence