HCID 59248338, compound → HCID 178511949, compound

Participants

Reaction Steps

Proceeding as in Example 17, but substituting 5-(5-carbamimidoyl-1H-benzoimidazol-2-yl)-6,2′-dihydroxy-5′-sulfamoylbiphenyl-3-carboxylic acid (20 mg, 40 μmol), prepared as in Reference 10, and lithium 2-aminoethanesulfonate, prepared as in Reference 4, gave 2-{[5-(5-carbamimidoyl-1H-benzoimidazol-2-yl)-6,2′-dihydroxy-5′-sulfamoyl-biphenyl-3-carbonyl]-amino}-ethanesulfonic acid as a yellow solid, Compound 111. RP-HPLC (1-90S) RT=2.21 min; 1H NMR (400 MHz, d6-DMSO, selected signals): δ 9.36* (2H, s), 8.98* (2H, s), 8.74 (1H, J=1.6 Hz), 8.74 (1H, d, J=2.0 Hz), 8.49* (1H, br t, J=5.0 Hz), 8.17 (1H, s), 7.85 (1H, d, J=8.4 Hz), 7.81 (1H d, J=2.0 Hz), 7.75 (1H, dd, J=8.4 Hz, 0.8 Hz), 7.70 (1H, dd, J=2.4 Hz), 7.67 (1H, dd, J=8.4, 2.4 Hz); 7.16* (2H, br s), 7.07 (1H, d, J=8.4 Hz); m/z (LCMS-ESI): Q+ 575 (M+H); Q− 573 (M−H).

Provenance & Evidence