1 PR1 4-hydroxy-3-[2-oxo-3-(thieno[3,2-B]pyridine-2-sulfonylamino)-pyrrolidin-1-ylmethyl]-benzamidine 1.000 2 815 Thieno[3,2-B]pyridine-2-sulfonic acid [1-(1-amino-isoquinolin-7-ylmethyl)-2-oxo-pyrroldin-3-yl]-amide 0.743 3 PR2 Thieno[3,2-B]pyridine-2-sulfonic acid [2-oxo-1-(1h-pyrrolo[2,3-C]pyridin-2-ylmethyl)-pyrrolidin-3-yl]-amide 0.735