Methanol → 2-Sulfamoyl-6-carbamoyl-4,5,6,7-tetrahydrothieno[2,3-c]pyridine

Participants

Reaction Steps

To a warm (40° C.) solution of 2-sulfamoyl-4,5,6,7-tetrahydrothieno[2,3-c]pyridine (1.42 g, 6.5 mmol) in acetonitrile (80 ml), under a nitrogen atmosphere, was added trimethylsilyl isocyanate (1.0 ml, 7.4 mmol). This solution was stirred for 19 hours and then methanol (2 ml) was added. After 2 hours the precipitated pure product was collected by filtration (1.62 g, 95% yield); m.p. 205°-208° C.

Provenance & Evidence