1 S1Y [(2s,3r)-1-{[(4s)-1-(2-aminoethyl)azepan-4-yl]carbamoyl}-2-formylpyrrolidin-3-yl]sulfamic acid 1.000 2 ZX0 (3r)-1-[(4s)-azepan-4-ylcarbamoyl]-3-(sulfoamino)-L-proline 0.846 3 ZX1 (3r)-1-[(4r)-azepan-4-ylcarbamoyl]-3-(sulfoamino)-L-proline 0.846