Glycine → HCID 131726843, compound

Participants

Reaction Steps

Two mmoles of L-glycine and 3 mmoles of NaHCO3 were dissolved in 5 ml of water. A solution containing 1 mmol of 3 in acetone was slowly added. More acetone was added until the solution was clear. The mixture was stirred overnight at room temperature, and protected from light. Acetone was removed by flash evaporation and the remaining water solution was acidified to pH=4.5 to 5 by adding 2M citric acid. Then, NaCl was added until saturation and the solution was extracted with three portions of ethyl acetate (20 ml each). The extracts were combined, dried over MgSO4 and solution filtered Solvent was removed and residue purified by liquid chromatography on silica gel. A gradient of 0 to 5% methanol in dichloromethane was used as eluent. Fractions containing desired products were combined and solvents removed. The residue was triturated in 1:1 ether: petroleum ether. Precipitate was filtered out and dried in vacuum overnight thus affording 5-Butylmethylamino-naphtalene-1-sulfonyl-glycine (NST703).

Provenance & Evidence