4,5-dihydroxy-1-(hydroxymethyl)-3-(methoxymethyl)imidazolidin-2-one
3-(5-tert-butyl-1,2-oxazol-3-yl)-4-hydroxy-1-methylimidazolidin-2-one
5-(2-chlorophenyl)-1-methylimidazolidin-2-one
1-(4-methylthiazol-2-yl)imidazolidin-2-one
