Urea acts as a nucleophile in this reaction.
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4-(4-bromophenyl)-5-(4-hydroxy-2-oxo-2H-chromen-3-yl)-2,3-dihydro-1H-imidazol-2-one
N1,N3-di(pyridin-4-yl)benzene-1,3-bis(carbothioamide)
FENURON
C14H14FNO2
2-(4-Aminophenyl)-5,6-dimethyl benzimidazole
METHYL 3-BUTYL-2,4-DIOXO-1,2,3,4-TETRAHYDROQUINAZOLINE-7-CARBOXYLATE
PF-04457845
1-{3-benzyl-2-[4-fluoro-2-(1-hydroxy-ethyl)-phenoxy]-quinolin-6-yl}-3-(3-nitro-phenyl)-urea