Ammonia → HCID 58256406, compound

Participants

Reaction Steps

Isoquinoline-5-sulfonic acid [4-((S)-3-amino-4-hydroxy-butyl)-phenyl]-amide (109 mg) was dissolved in methanol (3 ml) at room temperature before addition of sodium acetate (72.2 mg) and a solution of cyanogen bromide (40.4 mg) in methanol (1 ml) dropwise. The reaction mixture was stirred at room temperature for 36 hours, then aqueous ammonia 25% was added (55 μl) and stirring was continued for an another hour. The solvent was evaporated in vacuo and the residue purified by Isco chromatography (column: Silicycle Si-Amine, AcOEt) to give isoquinoline-5-sulfonic acid {4-[2-((S)-2-amino-4,5-dihydro-oxazol-4-yl)-ethyl]-phenyl}-amide (7.8 mg) as a yellow solid. Description. MS (ISP): 397.2 ([M+H]+).

Provenance & Evidence