1 UIB (1r,3as,4r,8as,8br)-4-{5-(phenyl[1,3]dioxol-5-ylmethyl)-4-ethyl-2,3,3-trimethyl-6-oxo-octahydro-pyrrolo[3,4-C]pyrrol-1-yl}-benzamidine 1.000 2 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 0.833 3 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 0.811 4 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 0.737 5 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 0.718 6 ESH 4- [(1r,3as,4r,8as,8br)- 2- (4-chlorobenzyl)- 1- isopropyl- 3- oxodecahydropyrrolo[3,4- a]pyrrolizin- 4- yl]benzenecarboximidamide 0.711