1 ISH (7r)-7-[(dimethylamino)methyl]-1-[3-(dimethylamino)propyl]-7,8-dihydro-1h-furo[3,2-E]benzimidazol-2-amine 1.000 2 ISI (7s)-7-[(dimethylamino)methyl]-1-[3-(dimethylamino)propyl]-7,8-dihydro-1h-furo[3,2-E]benzimidazol-2-amine 1.000 3 SS0 (8r)-8-[(dimethylamino)methyl]-1-[3-(dimethylamino)propyl]-1,7,8,9-tetrahydrochromeno[5,6-D]imidazol-2-amine 0.880