Chloroform trifluoroacetic acid → N-[3'-(5-Carbamimidoyl-2-methylsulfanyl-thiophene-3-sulfonyl)-6-methyl-biphenyl-2-yl]-4-sulfamoylbutyramide trifluoroacetate

Participants

Reaction Steps

A solution of dichloromethane/trifluoroacetic acid (1/1) [1 mL] was added (imino-{4-[6′-methyl-2′-(4-sulfamoyl-butyrylamino)-biphenyl-3-sulfonyl]-5-methylsulfanyl-thiophen-2-yl}-methyl)-carbamic acid tert-butyl ester (0.010 g, 0.015 mmol) [example 210, step a] at room temperature and stirred for 1 hour. The reaction mixture was evaporated and purified via reverse-phase HPLC [acetonitrile/water (0.01% TFA)] to give the title compound (0.005 g, 36%) as a solid. 1H-NMR (MeOD): δ 8.30 (s, 1H), 8.04 (md, 1H, J=7.6 Hz), 7.88 (t, 1H, J=1.6 Hz), 7.70 (t, 1H, J=7.6 Hz), 7.54 (md, 1H, J=7.6 Hz), 7.36 (t, 1H, J=7.6 Hz), 7.29 (d, 1H, J=6.8 Hz), 7.19 (d, 1H, J=8.0 Hz), 2.77–2.72 (m, 5H), 2.16 (t, 2H, J=7.2 Hz), 2.09 (s, 3H), 1.76 (m, 2H). ESI-MS (m/z): Calcd. for C23H26N4O5S4: 566.08; found: 567.1.

Provenance & Evidence