Methanol → 4-Benzo[4,5]furo[3,2-d]pyrimidin-4-yl-piperazine-1-carbothioic acid [4-(Pyrimidin-2-ylsulfamoyl)-phenyl]-amide

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Reaction Steps

To a solution of 4-piperazinobenzofurano[3,2-d]pyrimidine (200 mg, 0.79 mmol) and pyridine (0.5 mL, 7.9 mmol) in dichloromethane (20 mL) was added a solution of product 1d in dichloromethane (20 mL) and this was stirred overnight. Methanol was added to quench excess thiophosgene; and the residue after removal of solvent was purified by silica gel column chromatography eluting with 5% methanol/dichloromethane and further recrystallized from dichloromethane/hexane to give 150 mg (37%).

Provenance & Evidence