Sulfamide → HCID 178512633, compound

Participants

Reaction Steps

1.3 g of methyl 5-(2-guanidinothiazol-4-yl)pentanoimidate and 1.1 g of sulfamide were dissolved in 4.3 g of methanol, and the solution was allowed to stand overnight at room temperature. The solvent was distilled away under reduced pressure and the residue was purified by a silica gel column chromatography using a mixture of acetone and methanol as the developing solvent. The obtained crystals were dissolved in 0.4 ml of acetic acid, 4 ml of ehtanol and 8 ml of water, and the solution was treated with activated charcoal. To the filtrate was added 6.6 ml of N--NaOH, and the precipitated crystals were filtered off to provide 0.70 g of N-sulfamoyl-5-(2-guanidinothiazol-4-yl)pentanoamidine having a melting point of 156°-157° C.

Provenance & Evidence