Sodium Hydroxide → HCID 57901570, compound

Participants

Reaction Steps

To a solution of methyl 3-({methyl[2-(1,3-thiazol-2-yl)-1H-indol-7-yl]amino}sulfonyl)thiophene-2-carboxylate (300 mg) in methanol (2 mL) and tetrahydrofuran (2 mL) was added 1N aqueous sodium hydroxide solution (2 mL) at room temperature, and the mixture was stirred for 3 hr. The reaction mixture was concentrated, and 1N hydrochloric acid (5 mL) was added to the residue. The precipitated crystals were collected by filtration, washed with water, and dried to give the title compound (236 mg, yield 80%) as yellow crystals. melting point 225° C.

Provenance & Evidence