Tetrahydrofuran → HCID 57901672, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of ethyl 7-{[2-(methylsulfonyl)phenylsulfonyl]amino}-1H-indole-2-carboxylate (1.84 g), 8N aqueous sodium hydroxide solution (2.50 mL), tetrahydrofuran (5 mL) and methanol (5 mL) was stirred at 60° C. for 2 hr. The reaction mixture was concentrated, and water was added to the residue. The mixture was acidified with 10% aqueous citric acid solution, and the resulting crystals were filtrated, washed with water, and dried to give the title compound (1.67 g, yield 97%) as yellow crystals. melting point>304° C. (decomposition).

Provenance & Evidence