1 F25 4-(1r,3as,4r,8as,8br)-[1-difluoromethyl-2-(4-fluorobenzyl)-3-oxodecahydropyrrolo[3,4-a]pyrrolizin-4-yl]benzamidine 1.000 2 FSN (3asr,4rs,8asr,8brs)-4-(2-(4-fluorobenzyl)-1,3-dioxodeacahydropyrrolo[3,4-a] pyrrolizin-4-yl)benzamidine 0.879 3 ESH 4- [(1r,3as,4r,8as,8br)- 2- (4-chlorobenzyl)- 1- isopropyl- 3- oxodecahydropyrrolo[3,4- a]pyrrolizin- 4- yl]benzenecarboximidamide 0.829 4 348 4-[(1r,3as,4r,8as,8br)-1-isopropyl-2-(4-methoxybenzyl)-3-oxodecahydropyrrolo[3,4-a]pyrrolizin-4-yl]benzenecarboximidamide 0.806 5 UIP (1r,3as,4r,8as,8br)-4-(2-benzo[1,3]dioxol-5-ylmethyl-1-ethyl-3-oxo-decahydro-pyrrolo[3,4-a]pyrrolizin-4-yl)-benzamidine 0.806 6 UIQ (1r,3as,4r,8as,8br)-4-(2-benzo[1,3]dioxol-5-ylmethyl-1-isopropyl-3-oxo-decahydro-pyrrolo[3,4-a]pyrrolizin-4-yl)-benzamidine 0.784 7 SHY 4-[(3as,4r,7r,8as,8br)-2-(1,3-benzodioxol-5-ylmethyl)-7-hydroxy-1,3-dioxodecahydropyrrolo[3,4-a]pyrrolizin-4-yl]benzenecarboximidamide 0.757 8 UIR (1r,3as,4r,8as,8br)-4-(2-benzo[1,3]dioxol-5-yl-1-cyclopropyl-3-oxo-decahydro-pyrrolo[3,4-a]pyrrolizin-4-yl)-benzamidine 0.737 9 UIZ (1r,3as,4r,8as,8br)-4-(2-benzo[1,3]dioxol-5-ylmethyl)-1-benzyl-3-oxo-decahydro-pyrrolo[3,4-a]pyrrozilin-4-yl-benzamidine 0.707