Hydrochloric Acid → HCID 178464662, compound

Participants

Reaction Steps

680 mg N-(2-Chloro-4-{[(4,4-dimethyl-4,5-dihyd ro-pyrazol-1-yl)-ethylamino-methylene]-sulfamoyl}-phenyl)-acetamide was dissolved in 5 mL MeOH, and 5 mL of concentrated HCl was added. The mixture was stirred overnight at room temperature. The mixture was basified with 2M NaOH, and extracted twice with DCM. The combined organic layers were dried over Na2SO4 and evaporated to dryness. The residue was purified by flash chromatography (DCM/MeOH 99:1) to give 240 mg (40%) of 4-Amino-3-chloro-N-[(4,4-dimethyl-4,5-dihydro-pyrazol-1-yl)-ethylamino-methylene]-benzenesulfonamide as an orange oil. 1H NMR (400 MHz, CDCl3) δ 1.17 (t, J=7 Hz, 3H), 1.21 (s, 6H), 3.43-3.52 (m, 2H), 3.75 (br.s., 2H), 4.37 (br.s., 2H), 6.73 (s, 1H), 6.76 (d, J=8 Hz, 1H), 6.86 (br.s., 1H), 7.62 (dd, J=2 and 8 Hz, 1H), 7.83 (d, J=2 Hz, 1H).

Provenance & Evidence