[[2-bromo-1-(4-nitrophenyl)ethylidene]amino]urea

methyl 1-(carbamoylamino)-4-[(4-chlorophenyl)carbamoyl]-2,5-dimethylpyrrole-3-carboxylate

methyl 1-(carbamoylamino)-2-methyl-5-phenyl-4-(phenylcarbamoyl)pyrrole-3-carboxylate

[(E)-indeno[2,1-b]pyridin-9-ylideneamino]urea

[(E)-(4-propan-2-ylphenyl)methylideneamino]urea