1 2QP N~2~-{[(1s)-1-carboxy-2-(furan-2-yl)ethyl]carbamoyl}-N~6~-(4-iodobenzoyl)-L-lysine 1.000 2 2QS (2s)-2-[({(1s)-1-carboxy-2-[(2s)-oxiran-2-yl]ethyl}carbamoyl)amino]-6-[(4-iodobenzoyl)amino]hexanoic acid (non-preferred name) 0.879 3 2QN N~2~-{[(1s)-1-carboxy-2-(pyridin-4-yl)ethyl]carbamoyl}-N~6~-(4-iodobenzoyl)-L-lysine 0.857 4 2QQ N~2~-{[(1s)-1-carboxybut-3-yn-1-yl]carbamoyl}-N~6~-(4-iodobenzoyl)-L-lysine 0.794 5 YZE N~2~-{[(1s)-1-carboxybut-3-en-1-yl]carbamoyl}-N~6~-[(4-iodophenyl)carbonyl]-L-lysine 0.794 6 JRG N~2~-{[(1s)-1-carboxy-3-(methylsulfanyl)propyl]carbamoyl}-N~6~-(4-iodobenzoyl)-L-lysine 0.771 7 YC2 N-{[(1s)-1-carboxy-5-{[(4-iodophenyl)carbonyl]amino}pentyl]carbamoyl}-L-glutamic acid 0.750