1 00P (5s)-N-[(trans-4-aminocyclohexyl)methyl]-1,3-dioxo-2-[2-(phenylsulfonyl)ethyl]-2,3,5,8-tetrahydro-1h-[1,2,4]triazolo[1,2-a]pyridazine-5-carboxamide 1.000 2 IH1 2-[2-(4-bromo-benzenesulfonyl)-ethyl]-1-3-dioxo-2,3,5,8-tetrahydro-1h-[1,2,4]triazolo[1,2-a]pyridazine-5-carboxylic acid(4-carbamimidoyl-cyclohexylmethyl)-amide 0.865