1 I25 (2r)-({4-[amino(imino)methyl]phenyl}amino){3-[3-(dimethylamino)-2,2-dimethylpropoxy]-5-ethylphenyl}acetic acid 1.000 2 I26 (2r)-[(4-carbamimidoylphenyl)amino]{3-[3-(dimethylamino)-2,2-dimethylpropoxy]-5-ethyl-2-fluorophenyl}ethanoic acid 0.969