3-[[3-methyl-2-[3-[5-[N-[(2-methylpropan-2-yl)oxycarbonyl]carbamimidoyl]-2-methylsulfanylthiophen-3-yl]sulfonylphenyl]phenyl]methoxy]propanoic acid → 3-[3'-(5-Carbamimidoyl-2-methylsulfanyl-thiophene-3-sulfonyl)-6-methyl-biphenyl-2-ylmethoxy]-propionic acid

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A mixture of 3-{3′-[5-(tert-butoxycarbonylamino-imino-methyl)-2-methylsulfanyl-thiophene-3-sulfonyl]-6-methyl-biphenyl-2-ylmethoxy}-propionic acid (5.1 mg, 8.4 μmol) in TFA/DCM (1:1, 1.5 mL) was stirred at ambient temperature for 1 h. The mixture was concentrated and flash chromatographed on silica gel, eluting with MeOH/DCM (5 to 12%) to give the title compound (3.0 mg, 69% yield) as a white solid.

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