Sulfanilamide → HCID 25132458, compound

Participants

Reaction Steps

The carboxylic acid intermediate 18D (400 mg) and DIEA (600 μL) were dissolved in DMF (10 mL). An aliquot of this stock solution (400 μL) was dispensed into a vial charged with 4-aminobenzenesulfonamide (0.10 mmol). TBTU was added (0.50 mmol) to the vial and the mixture was stirred at room temperature for 2 hours. The crude mixture was purified by prep LC-MS using a gradient elution of 5% to 95% MeCN/water in 15 min. The product was taken up with DCM and diluted with hexanes. Evaporation under nitrogen flow gave the desired product, Compound 208 as a solid. LCMS (+ESI) m/z 464 [M+H]+

Provenance & Evidence