8-Benzyl-8-azaspiro[bicyclo[3.2.1]octane-3,4'-imidazolidine]-2',5'-dione
tert-Butyl 2',5'-dioxo-8-azaspiro[bicyclo[3.2.1]octane-3,4'-imidazolidine]-8-carboxylate
(7AS)-6-aminotetrahydro-1H-pyrrolo[1,2-c]imidazol-3(2H)-one
(2S,5R,6R)-3,3-Dimethyl-7-oxo-6-((R)-2-(2-oxoimidazolidine-1-carboxamido)-2-phenylacetamido)-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid
(R)-6-(4-Bromophenyl)-2,3,5,6-tetrahydroimidazo[2,1-b]thiazole oxalate
(7AS)-6-hydroxytetrahydro-1H-pyrrolo[1,2-c]imidazol-3(2H)-one
