Water → HCID 57901824, compound

Participants

Reaction Steps

To a suspension of lithium aluminum hydride (260 mg) in tetrahydrofuran (10 mL) was added dropwise a solution of methyl 3-({methyl[2-(1,3-thiazol-2-yl)-1H-indol-7-yl]amino}sulfonyl)thiophene-2-carboxylate (1.4 g) in tetrahydrofuran (5 mL) under ice-cooling, and the mixture was stirred at room temperature for 4 hr. To the reaction mixture were added water (260 μL), 15% aqueous sodium hydroxide solution (260 μL) and water (780 μL) in this order and the mixture was stirred at room temperature for 2 hr. The insoluble material was filtered off, and the filtrate was concentrated. The residue was subjected to silica gel column chromatography (ethyl acetate:hexane=1:1) to give the title compound (701 mg, yield 54%) as pale-yellow crystals. melting point 192° C.

Provenance & Evidence